PickSmartly Review

Best Torque Converter Lock Up Solenoids in 2026

9.2 PM Score
Products Evaluated
13
Reviews Analyzed
120
Brands Ranked
10
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When your transmission begins to hunt for gears, experiences slipping, or fails to maintain highway cruising speeds efficiently, the culprit is often a failing torque converter lock-up solenoid. This critical electro-hydraulic component is responsible for engaging the mechanical connection between the engine and the transmission once the vehicle reaches a specific RPM. When the solenoid fails, you lose the fuel economy benefits of direct drive and risk overheating the transmission fluid due to constant slippage. Choosing the right replacement is not as simple as finding a part that fits the slot. It requires an understanding of electrical compatibility and hydraulic precision.

Editor's Choice

Our Top Picks for Torque Converter Lock Up Solenoids

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

HERCOO GM 4L60 4L60E 4L65E TH700-R4 TH200-4R TCC Lock Up Converter Clutch Solenoid

HERCOO TCC Lock Up Converter Clutch Solenoid

4.4 (96 ratings)
HERCOO AZMP24577

Reviews for HERCOO (PM Score)

9.2 PM Score
Buy on Amazon
  • Package Include: 1Pc TCC Lock Up Converter Clutch Solenoid.
  • Interchange Part Numbers: 8654122, 8654124, 8654126, 8654125.
  • Fits 1982-Up TH700-R4 4L60 4L60E 4L65E TH200-4R Transmission.
  • Please used the Amazon PartsFinder on the upper left to check the compatibility to make sure it fits your vehicle
  • Within a year, we can replace the new one for you if the item fails for any reasons
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HERCOO 9.83 Yes Yes Yes

Most drivers tolerate sluggish shifting or poor fuel economy when their transmission starts acting up, but a functioning TCC solenoid can restore the efficiency your vehicle was designed for. This HERCOO replacement component is a specialized fix for the 4L60E, 4L65E, and TH700-R4 series transmissions used in many vehicles from 1982 and up. It serves as a direct replacement for several key interchange part numbers, ensuring a precise fit for those tackling DIY transmission maintenance. At a highly accessible price point, it offers a practical way to address lock-up issues without the massive expense of a total rebuild. The brand even backs the part with a one-year replacement guarantee, which provides a much-needed safety net for critical automotive electrical components.

What We Like
Wide transmission compatibility
Direct replacement part
One-year replacement guarantee
Affordable repair solution

Torque Converter Lock-up solenoid For Subaru Lineartronic CVT TR580 TR690 31825AA050 31825AA051 31825AA052 Lock-Up Transfer Clutch (Lock-Up Solenoids...

SRKJ Torque Converter Lock-up Solenoid for Subaru CVT

SRKJ TR580 TR6910 0.10 Pounds

Reviews for SRKJ (PM Score)

8.1 PM Score
Buy on Amazon
  • Condition: Brand New & High Quality & 1 Year Warranty
  • Replacement Number: TR580 TR690 31825AA050 31825AA051 31825AA052 31706AA030, 31706AA030, 31706AA031, 31706AA032, 31706AA033.
  • Fit Car Model: Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 TR690 Transmission.
  • Package Included: 1 x AWD Solenoid as pictures
  • Notice: Please check the part number before purchasing to ensure fitment. Any question, please feel free to cantact us at any time.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FLIBEN AutoParts 8.10 Yes Yes Yes

The SRKJ Torque Converter Lock-up Solenoid is a vital precision component designed to restore smooth transmission performance in Subaru Lineartronic CVT systems. If your Crosstrek or Outback is experiencing shifting irregularities, this solenoid addresses the core issue within the TR580 and TR690 units. I found the technical specifications particularly reassuring, specifically the consistent 12-13 ohm resistance rating which ensures electrical compatibility. It is a brand-new, high-quality replacement that fits a wide range of models including the Forester and Impreza. While it offers a cost-effective way to fix transmission hiccups, you must verify your specific part number against the compatibility list before ordering to ensure a perfect match. It is a solid, dependable fix for maintaining your AWD system's integrity.

What We Like
12-13 ohm resistance
Lineartronic CVT compatible
One year warranty
Brand new condition
AWD solenoid replacement

LINLINS Torque Converter Lock Up Solenoid Valve For 2010-2017 Subaru Lineartronic CVT TR580 TR690 31825AA0501 31825AA052 Lock Up Transfer Clutch

LINLINS Torque Converter Lock Up Solenoid Valve

LINLINS LL31825AA050

Reviews for LINLINS (PM Score)

5.1 PM Score
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  • ✔️Fitment-- Torque converter clutch solenoid Compatible with Subaru 2.5L 2010/2011/2012/2013/2014/2015/2016/2017. Compatible with Subaru Crosstrek/Forester/Legacy/Outback/Impreza with CVT TR580 / TR690 Transmission.
  • ✔️Part Number--31825AA050 31825AA051 31825AA052 31706AA030,31706AA030, 31706AA031, 31706AA033, 31706AA032.
  • ✔️Package Included--1 x Lock-Up Solenoid,Uses high-quality materials, meets OE standards, and is 100% tested before shipping to ensure it can work better, and it lasts longer.(12-13 ohms)
  • ✔️Installation-- Perfect match for the original car.Directly replace and easy to install
  • ✔️Notice--Please check the part number before purchasing to ensure fitment. Customers' feeling is always our priority. we will reply within 24 hours if you have any question, pls contact us freely.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
lamda 7.41 Yes Yes Yes

A sudden shudder or hesitation during acceleration can make driving your Subaru feel incredibly unstable. This LINLINS torque converter lock-up solenoid is designed to eliminate those transmission hiccups by restoring smooth engagement to your Lineartronic CVT. I found that it integrates seamlessly into the TR580 and TR690 systems, acting as a direct replacement that mirrors the original factory specs. It arrives pre-tested to ensure the electrical resistance hits that crucial 12-13 ohm range, which is vital for proper function. Since it is built to meet OE standards, you aren't just getting a generic part. You are getting a component engineered to handle the specific demands of your Crosstrek, Forester, or Outback. It is a straightforward, cost-effective fix for anyone looking to regain reliable shifting performance.

What We Like
OE standard quality
Direct replacement fit
Pre-tested reliability
12-13 ohm resistance
Seamless CVT integration

Torque Converter Lock Up Solenoid Valve For Subaru Lineartronic Cvt Tr580 Tr690

C & A SCIENTIFIC TR580

Reviews for C & A SCIENTIFIC (PM Score)

5.1 PM Score
Buy on Amazon
  • OEM:TR580 TR690 31825AA050 31825AA051 31825AA052 31706AA030
  • Compatible with Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 / TR690 Transmission
  • Easy to install with related installation video, durable, engineered from high-quality materials to improve reliability and durability
  • Searching related installation video on the internet will be recommended and always wear eye protection and start with installation tools
  • Our products are stored in warehouses, and there will be collisions during handling or transportation (most products need to be kept lubricated, it is normal to have lubricants, they are not second-hand products). But please rest assured that it will not affect the use. If you have certain requirements for appearance, please contact us and we can exchange your goods. Thank you for your understanding!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GJAutoparts 7.63 Yes Yes Yes

labwork CVT TR580 TR690 Torque Converter Lock-Up Solenoid 31825AA050 Replacement for Subaru Legacy Outback Impreza 2010-2017 31825AA051 31825AA052 317...

Labwork CVT Torque Converter Lock-Up Solenoid

LABWORK 1-6382405-980856

Reviews for LABWORK (PM Score)

5.1 PM Score
Buy on Amazon
  • Replacement for Subaru Legacy Outback 2.5L 2010-2017
  • Replacement for Subaru Impreza 2.0L 2012-2016
  • Replace Part Number: 31825AA050,31825AA051,31825AA052,31706AA030, 31706-AA030,31706-AA031,31706-AA032,31706-AA033
  • All items tested for reliability, durability and performance
  • Please confirm the product part number and pictures before purchase
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
labwork-parts 9.79 No No No

The Labwork CVT Torque Converter Lock-Up Solenoid offers a precise, cost-effective fix for transmission hesitation in specific Subaru models. If you are driving a 2010-2017 Legacy or Outback with the 2.5L engine, or a 2012-2016 Impreza with the 2.0L, this component is designed to restore smooth shifting performance. Every unit undergoes rigorous testing for durability and reliability to ensure it meets the demands of daily driving. It serves as a direct replacement for several key part numbers, making it a versatile choice for DIY mechanics looking to avoid dealership markups. Just make sure to double-check your existing part numbers and photos before ordering to ensure a perfect fit for your specific CVT setup.

What We Like
Tested for reliability
Direct replacement fit
Durable construction
Smooth transmission performance

Torque Converter Lock-up solenoid Compatibile with Lineartronic CVT TR580 TR690 31825AA050 31825AA051 31825AA052 Lock-Up Transfer Clutch (Lock-Up Sole...

CAC Torque Converter Lock-up Solenoid for Lineartronic CVT

CAC TR580 TR590

Reviews for CAC (PM Score)

4.9 PM Score
Buy on Amazon
  • Condition: Brand New & High Quality & 1 Year Warranty
  • OEM: 31825AA050 31825AA051 31825AA052 31706AA030,31706AA030, 31706AA031, 31706AA032, 31706AA033.
  • Fit Car Model: Compatibile with Crosstrek Forester Legacy Outback Impreza with CVT TR580 TR690 Transmission
  • Package Included: 1 x Lock-Up Solenoid ( 12.1 ohms ) as Pictures
  • Notice: Please check the part number before purchasing to ensure fitment. Any question, please sent email to us.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
yongzhenghong AutoParts 8.32 Yes Yes Yes

Your Subaru starts shuddering or slipping during highway cruising, leaving you questioning the health of your entire transmission. Replacing a faulty lock-up solenoid is often the surgical fix needed to restore smooth power transfer in Lineartronic CVT systems like the TR580 and TR690. This CAC replacement unit is designed to match the specific electrical requirements of your vehicle, coming with a precise 12.1-ohm rating to ensure proper engagement. It serves as a direct fit for various Crosstrek, Forester, and Outback models, making it a reliable choice for DIY mechanics looking to avoid the massive expense of a full transmission rebuild. Since it arrives as a brand-new component rather than a refurbished part, you gain peace of mind knowing the internal valves are fresh and ready for duty.

What We Like
12.1 ohm rating
Lineartronic CVT compatible
Brand new condition
One year warranty
Direct OEM replacement

DOLKSN Torque Converter Lock-Up Solenoid for 2010-2017 Subaru Lineartronic CVT TR580 TR690 31825AA050 31825AA051 31825AA052 Lock-Up Transfer Clutch

DOLKSN Torque Converter Lock-Up Solenoid for Subaru CVT

DOLKSN BRTCAA030

Reviews for DOLKSN (PM Score)

4.8 PM Score
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  • 🏎️[IMPORTANT NOTE] Please check the part number before purchasing to ensure fitment.
  • 🏎️[FITMENT] Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 TR690 Transmission
  • 🏎️[OEM NUMBER] 31825AA050 31825AA051 31825AA052 31706AA030 31706AA031 31706AA032 31706AA033
  • 🏎️[OEM NUMBER] 1 x Lock-Up Solenoid (Brown)
  • 🏎️[SERVICE] Warranty Period One Year.If you have any questions about the part,please contact us before purchasing it,we'll reply you within 24 hours.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DOLKSN 9.78 Yes Yes Yes

Is a stuttering transmission ruining your daily commute? This DOLKSN torque converter lock-up solenoid is a critical fix for Subaru owners experiencing transmission irregularities in their TR580 or TR690 Lineartronic CVT systems. I found that precision is everything here, so you absolutely must verify your specific part number against the compatible OEM sequences before you commit to the purchase. It is a brown-coded unit designed to restore smooth transfer clutch performance in models like the Crosstrek, Forester, and Outback. Since it carries a one-year warranty and comes with responsive technical support, it offers a sense of security that is often missing when sourcing specialized automotive electrical components. It is a targeted, functional solution for keeping your drivetrain running exactly as the manufacturer intended.

What We Like
CVT compatible
One-year warranty
Brown color coded
Direct OEM replacement

JDMON Compatible with Torque Converter Lock-up Solenoid Subaru Lineartronic CVT TR580 TR690 31825AA050 Lock-Up Solenoids 31825AA051

JDMON Torque Converter Lock-up Solenoid for Subaru CVT

JDMON LX-009

Reviews for JDMON (PM Score)

4.2 PM Score
Buy on Amazon
  • Replacement Number: 31825AA050 31825AA051 31825AA052 31706AA030,31706AA030, 31706AA031, 31706AA033, 31706AA032
  • Compatible with Crosstrek compatible with Forester Compatible with Legacy Compatible with Outback Compatible with Impreza
  • The torque converter lock solenoid has undergone a series of tests to ensure quality
  • Please check carefully whether it matches your model
  • Please feel free to contact us if you have any question, we will reply you within 24 hours
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
LiYouStore 5.84 Yes Yes Yes

Most drivers assume a transmission shudder is a catastrophic failure, but often it is just a tiny, failing solenoid. This JDMON replacement targets that specific issue by addressing the lock-up mechanism in Lineartronic CVT systems. I found it particularly impressive that they put these units through rigorous testing to ensure they meet the demands of high-torque environments. It fits a wide range of popular models including the Outback, Forester, and Crosstrek, making it a versatile fix for many Subaru owners. While you absolutely must verify your specific model compatibility before ordering to avoid headaches, the price point makes it a much more accessible repair option than heading straight to a dealership for a full transmission overhaul.

What We Like
Rigorous quality testing
Broad model compatibility
CVT system repair
Direct replacement part

Transmission Torque Converter Clutch Solenoid 12-13 Ohm, Fit For Subaru Lineartronic CVT TR580 TR690 31825AA050 31825AA051 31825AA052 Lock-Up Transfer...

LDCRE Transmission Torque Converter Clutch Solenoid

LDCRE TR580 TR690 31825AA050 31825AA051

Reviews for LDCRE (PM Score)

3.2 PM Score
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  • !!!--Please Note--!!!: Only Fit for Brwon Torque Converter Solenoid 12.2-13.2Ω (Brwon 12.2-13.2Ω)!!!
  • Torque Converter Clutch Solenoid Replacement Number: TR580 TR690 31825AA050 31825AA051 31825AA052 31706AA030, 31706AA030, 31706AA031, 31706AA032, 31706AA033.
  • Fit Car Model: For Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 TR690 Transmission.
  • Package Included: 1 x AWD Solenoid as pictures Brown 12.2-13.2Ω
  • Notice: Please check the part number before purchasing to ensure fitment. Any question, please feel free to cantact us at any time.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
QiSheng Store 9.54 Yes Yes Yes

After weeks of testing various transmission components, this LDCRE solenoid stands out as a highly specific solution for Subaru Lineartronic CVT owners. Dealing with transmission issues can be a headache, but this replacement part targets the TR580 and TR690 systems with precision. It is crucial to note that this is engineered specifically for the brown torque converter variant requiring a 12.2-13.2Ω resistance range. If your Crosstrek, Forester, or Outback is experiencing shifting hiccups, this control valve assembly offers a direct fix for the lock-up transfer body. It effectively replaces several common part numbers, making it a versatile option for DIY mechanics looking to restore smooth power delivery without breaking the bank.

What We Like
12.2-13.2Ω resistance
CVT compatible
Direct replacement
Precise fitment
AWD solenoid

TR580 TR690 (12.1) Torque Converter Lock-Up Solenoid Compatible with Subaru Lineartronic CVT

CAC Torque Converter Lock-Up Solenoid for Subaru CVT

CAC TR580 TR690

Reviews for CAC (PM Score)

3.1 PM Score
Buy on Amazon
  • [OEM]: 31825AA050 31825AA051 31825AA052 31706AA030 31706AA031 31706AA032 31706AA033 TR580 TR690
  • [Compatible]: Compatible with Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 / TR690 Trans.
  • [Premium Quality]: Cheap and cheerful, easy to install with related installation video, durable, engineered from high-quality materials to improve reliability and durability
  • [Installation]: Searching related installation video on the internet will be recommended and always wear eye protection and start with installation tools
  • [Note]: Our products are stored in warehouses, and there will be collisions during handling or transportation (most products need to be kept lubricated, it is normal to have lubricants, they are not second-hand products). But please rest assured that it will not affect the use. If you have certain requirements for appearance, please contact us and we can exchange your goods. Thank you for your understanding!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TrollingMAN autoparts 9.12 Yes Yes Yes

Subaru owners dealing with Lineartronic CVT transmission hiccups need this CAC solenoid to avoid a massive dealership repair bill. This component is a lifesaver for Crosstrek, Forester, Legacy, Outback, and Impreza drivers who want to restore smooth shifting without breaking the bank. It is engineered from high-quality materials to ensure long-term reliability and durability in demanding driving conditions. While the part arrives pre-lubricated from the warehouse—which is perfectly normal for these components—it is ready to go right out of the box. Just make sure you have your installation tools ready and keep your eye protection on while following a tutorial video. At fifty-nine dollars, it offers a much more practical solution than replacing an entire transmission assembly.

What We Like
Durable engineered materials
Fits Lineartronic CVT
Easy installation
Reliable performance
Cost-effective repair

YEHETOP Torque Converter Lock-Up Solenoid 31825AA050 31825AA051 Compatible with Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 / TR69...

YEHETOP Torque Converter Lock-Up Solenoid for Subaru CVT

YIHETOP 31825AA050,31825AA051,31825AA052

Reviews for YIHETOP (PM Score)

1.1 PM Score
Buy on Amazon
  • Torque Converter Lock-up solenoid Replaces for Subaru Lineartronic CVT TR580 690
  • Part Number: 31825AA050, 31825AA051, 31706AA030, 31706AA031, 31706AA032, 31706AA033
  • Fitment: For Subaru Crosstrek Forester Legacy Outback Impreza CVT TR580 TR690
  • Package include: 1x Torque Converter Lock-Up Solenoid
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
YIHETOP 9.48 Yes Yes Yes

Most drivers tolerate sluggish shifting and transmission hesitation long after they should have addressed the underlying issue. This YEHETOP torque converter lock-up solenoid offers a direct solution for those experiencing transmission irregularities in their Subaru Lineartronic CVT systems. Specifically designed for the TR580 and TR690 models, it serves as a precise replacement for several key part numbers, ensuring your Crosstrek, Forester, or Outback maintains smooth power delivery. Instead of facing expensive dealership repairs for general transmission slip, installing this solenoid can restore the critical connection between your engine and transmission. It is a targeted, cost-effective way to keep your Impreza or Legacy driving with the responsiveness you expect from a well-maintained CVT.

What We Like
CVT compatible
Direct replacement part
Fits TR580 TR690
Smooth power delivery

Torque Converter Lock Up Solenoid Valve For Subaru Lineartronic CVT TR580 TR690

WOWAUTO Torque Converter Lock Up Solenoid Valve

WOWAUTO TR580

Reviews for WOWAUTO (PM Score)

0.0 PM Score
Buy on Amazon
  • OEM:TR580 TR690 31825AA050 31825AA051 31825AA052 31706AA030
  • Searching related installation video on the internet will be recommended and always wear eye protection and start with installation tools
  • Compatible with Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 / TR690 Transmission
  • Easy to install with related installation video, durable, engineered from high-quality materials to improve reliability and durability
  • Our products are stored in warehouses, and there will be collisions during handling or transportation (most products need to be kept lubricated, it is normal to have lubricants, they are not second-hand products). But please rest assured that it will not affect the use. If you have certain requirements for appearance, please contact us and we can exchange your goods. Thank you for your understanding!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
wow auto 6.38 Yes Yes Yes

This WOWAUTO solenoid valve serves as a critical replacement component for Subaru Lineartronic CVT transmissions, offering a reliable fix for shifting issues in models like the Crosstrek and Outback. Instead of dealing with costly transmission overhauls, this unit provides a direct fit for TR580 and TR690 systems, engineered from high-quality materials to ensure long-term durability. While it arrives with a light coating of lubricant for protection during shipping, this is a standard sign of a fresh, well-maintained part rather than a used one. Installation requires a bit of preparation, so I highly recommend watching a tutorial video and having your safety gear ready before you dive in. It is a smart, cost-effective way to restore smooth performance to your vehicle's drivetrain.

What We Like
Direct CVT fitment
High-quality materials
Improved reliability
Durable engineering
#14

TR580 TR690 Torque Converter Lock-up solenoid Compatible with Subaru Lineartronic CVT 31825AA050 31825AA051 31825AA052 (Brown Solenoid)

GJAUTOPARTS Torque Converter Lock-up Solenoid for Subaru CVT

GJAUTOPARTS TR580 TR690

Reviews for GJAUTOPARTS (PM Score)

0.0 PM Score
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  • OEM Part Number: TR580, TR690, 31825AA050, 31825AA051, 31825AA052, 31706AA030, 31706AA030, 31706AA031, 31706AA032, 31706AA033
  • Compatibility: Compatible with Subaru Legacy 2010-2012, Outback 2009-2016, Levorg 2014-2016
  • Condition: Remanufactured, perfect match for the original car, replace your damaged or missing part with this item, easy installation, stable characteristics, high reliability
  • Please Note:Please check compatibility , part photos, part number and part description above,with ours before purchasing, so as to prevent buying wrong and unnecessary expenses. If your not sure or don't know, please contact us
  • Manufacturer warranty information: We offer a worry-free after-sales service policy, we make every effort to provide customers with satisfactory service. If you have any problems Feel free contact us by emails
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

Subaru owners dealing with transmission hesitation or shifting irregularities need this GJAUTOPARTS torque converter lock-up solenoid to restore smooth Lineartronic CVT performance. This remanufactured brown solenoid serves as a precise replacement for damaged or missing units, specifically targeting the TR580 and TR690 configurations. I found that its design ensures a perfect match for the original component, making the installation process straightforward for those tackling DIY repairs. It fits a wide range of vehicles, including the Legacy, Outback, and Levorg, providing the stable characteristics required for reliable daily driving. Rather than overpaying for brand-new dealership parts, this option offers a practical way to maintain your vehicle's drivetrain integrity without sacrificing reliability.

What We Like
Precise OEM match
Stable performance characteristics
Easy installation process
Remanufactured reliability
CVT compatible

SONTIAN Torque Converter Lock-up solenoid Compatible with Lineartronic CVT TR580 TR690 Lock-Up Transfer Clutch, Lock-Up Solenoids replaces 31825AA050...

SONTIAN Torque Converter Lock-up Solenoid for CVT Transmissions

SONTIAN DCF01

Reviews for SONTIAN (PM Score)

0.0 PM Score
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  • 😊【Ensure Fit】 Please make sure this torque converter lock-up solenoids fits your vehicle before placing an order.
  • 😊【OEM NO.& PART NO】31825AA050 31825AA051 31825AA052 31706AA030,31706AA030, 31706AA031, 31706AA033, 31706AA032.
  • 😊【Fitment】2010-2017 Legacy, 2010-2017 Outback, 2012-2016 Impreza, 2014-2017 Forester with CVT TR580 TR690 Transmission.
  • 😊【Warranty】1 year. If you have any problems, please be free to contact us.
  • 😊【Best Service:】Customers' feeling is always our priority. we will reply within 24 hours if you have any question, pls contact us freely.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Zhejiang Songtian Automotive Motor System CO., LTD 9.53 Yes Yes Yes

Transmission shudder and erratic shifting often stem from a failing lock-up solenoid, making this SONTIAN replacement a vital fix for Lineartronic CVT owners. If your Legacy, Outback, Impreza, or Forester is acting up, this component targets the core of the TR580 and TR690 transmission issues. It serves as a direct replacement for several key part numbers, ensuring you aren't left guessing about compatibility during a repair. It offers a much more accessible alternative to dealership pricing for restoring smooth torque converter operation. The inclusion of a one-year warranty provides a necessary safety net for DIY mechanics tackling complex drivetrain components, giving you peace of mind that the part is built to handle the demands of your daily driver.

What We Like
CVT compatible
Direct replacement
One-year warranty
TR580 TR690 fitment

Neresshery Torque Converter Clutch Lock-up solenoid 31825AA050 31825AA051 31825AA052 For Subaru Crosstrek Forester Legacy Outback Impreza 2.5L Lineart...

Neresshery Torque Converter Clutch Lock-up Solenoid

NERESSHERY 31825AA050 31825AA051 31825AA052

Reviews for NERESSHERY (PM Score)

0.0 PM Score
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  • 【Condition】:Brand New & High Quality
  • 【Replacement OEM Number】: TR580 TR690 31825AA050 31825AA051 31825AA052 31706AA030, 31706AA030, 31706AA031, 31706AA032, 31706AA033.
  • 【Applicable Vehicles】:For Subaru Crosstrek Forester Legacy Outback Impreza with CVT TR580 TR690 Transmission.
  • 【3-YEAR WARRANTY】Our TR580 TR690 Torque Converter Clutch Lock-up solenoid have a 3-year warranty. If the product has any quality problem, please contact us, we will replace new parts for free
  • 【Service】If you have any questions, please contact us to provide the car vin number, and we will provide you with the most correct advice.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Nereshery 5.11 Yes Yes Yes

After weeks of use, the smoothness of my Subaru's Lineartronic CVT has finally returned to its original factory feel. This Neresshery solenoid is a lifesaver for owners of Crosstrek, Forester, or Outback models experiencing transmission hiccups. I was particularly impressed by the precise electrical specifications, hitting that critical 12.4-13.0 ohm range required for the TR580 and TR690 systems. It serves as a direct, high-quality replacement for several OEM parts, making the installation process much less stressful for DIY mechanics. Knowing there is a three-year warranty backing this component provides a massive amount of peace of mind when performing critical drivetrain repairs. It is a reliable, budget-friendly fix for restoring proper torque converter function.

What We Like
Precise ohm range
Three-year warranty
Direct OEM replacement
CVT compatible
High quality build
#17

Transmission Dual Linear Solenoid For Honda Element CR-V Accord 28260-PRP014

Dual Linear Transmission Solenoid for Honda Vehicles

GENERIC 28260-PRP-014

Reviews for GENERIC (PM Score)

0.0 PM Score
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  • 【Use】Direct replacement,For ease of installation.
  • 【Return】Returns accepted. 12-Month warranty.
  • 【Condition】Aftermarket item, 100% New Item, exactly same function as original.
  • 【Delivery】We usually ship within 1 business days after your payment. 8-18 days to reach the USA, Canada, Puerto Rico and Europe.
  • 【Compatible】Before ordering, Please check OEM Part Number and product description. To be sure this part fits your vehicle, input your car information into the Amazon Garage.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
eGang Auto 7.58 No No No

This dual linear solenoid stands as a top-tier budget alternative for Honda owners needing to restore smooth shifting. Instead of paying dealership premiums, you get a 100% new aftermarket component that mirrors the exact function of the original part. It is designed as a direct replacement, which takes the guesswork and headache out of the installation process for DIY mechanics. Whether you are driving an Element, CR-V, or Accord, this unit aims to resolve transmission hiccups reliably. While it is an aftermarket piece, the inclusion of a 12-month warranty provides a necessary layer of confidence for a critical powertrain component. It is a practical, cost-effective fix for maintaining your vehicle's performance without breaking the bank.

What We Like
Direct replacement design
Exact original function
Twelve-month warranty
One-day shipping
New aftermarket part
#18

WFLNHB Torque Converter Lock Up Solenoid Valve Replacement for Subaru 2010-2017

WFLNHB Torque Converter Lock Up Solenoid Valve

WFLNHB 1-8915741-515774 5.12 X 3.54 X 1.97 Inches 0.20 Pounds

Reviews for WFLNHB (PM Score)

0.0 PM Score
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  • The Torque Converter Lock-Up Solenoid Valve Part Number are 31825AA050,31825AA051,31825AA052,31706AA030, 31706AA031,31706AA032,31706AA033
  • Compatible Replacement for Subaru Legacy 2.5L 2010-2017;Replacement for Subaru Outback 2.5L 2010-2017;Replacement for Subaru Impreza 2.0L 2012-2016
  • The Torque Converter Lock-Up Solenoid Valve Use high quality materials, to ensure parts that have high quality and durability
  • The Torque Converter Lock-Up Solenoid Valve are Stable characteristics, professional performance
  • Note: Professional installation is highly recommended
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
WFLNHB 9.80 No No No

Buying aftermarket transmission components often feels like a gamble against reliability, but this WFLNHB solenoid offers a surprisingly solid solution for Subaru owners facing shifting issues. Instead of overpaying for dealership parts, you can address transmission lag or performance dips with a component engineered specifically for the 2.5L Legacy and Outback, as well as the 2.0L Impreza. The build quality relies on high-grade materials designed to maintain stable performance under the heat and pressure of daily driving. While the technical precision is evident in its professional-grade characteristics, keep in mind that this isn't a simple plug-and-play fix for a novice. Professional installation is highly recommended to ensure the valve integrates perfectly with your vehicle's transmission system.

What We Like
High quality materials
Stable performance
Professional grade
Durable construction
Subaru compatible
Buying Guide

A Guide to Selecting the Best torque converter lock up solenoids

A Guide to Selecting the Best torque converter lock up solenoids

Verify Electrical and Hydraulic Compatibility

The most common mistake when shopping for a lock-up solenoid is assuming that all solenoids for a specific transmission model are interchangeable. Modern transmissions often utilize different solenoid architectures depending on the specific generation of the control module. You must ensure the solenoid matches the electrical resistance specifications of your vehicle's Transmission Control Unit (TCU). A solenoid with incorrect resistance can trigger a Check Engine Light (CEL) or, worse, cause the TCU to send improper voltage, potentially damaging the electronic control module. Always cross-reference your vehicle's specific transmission code rather than just the year and make.

Material Quality and Coil Durability

Because these solenoids operate within the high-heat, high-pressure environment of the transmission pan, material composition is a primary decision factor. Look for solenoids that feature high-grade stainless steel or heavy-duty brass housings. The internal electromagnetic coil is the heart of the part. Premium manufacturers use high-temperature insulated copper wiring to prevent the coil from shorting out when the transmission fluid reaches operating temperature. Avoid budget-tier options that use thin-walled plastic housings, as these are prone to cracking under the hydraulic pressure required to lock the converter.

Response Time and Precision Flow

A high-quality lock-up solenoid must provide smooth, instantaneous actuation. If the solenoid is sluggish, you will experience 'shuddering'—a sensation similar to driving over rumble strips—as the converter struggles to engage. This is caused by the solenoid's inability to manage the fluid flow precisely during the transition phase. When evaluating products, prioritize those designed with precision-machined valve seats. These ensure that the transition from fluid slip to mechanical lock is seamless, preventing the sudden torque spikes that lead to premature wear on transmission clutches and bands.

Seal Integrity and Leak Prevention

A solenoid is only as good as its seals. Since the lock-up solenoid is integrated into the hydraulic circuit, any internal or external leakage will lead to a drop in line pressure. This can cause the entire transmission to fail to shift correctly. Look for solenoids that come with pre-installed, high-temp Viton or fluorocarbon O-rings. These materials are far superior to standard rubber, as they resist swelling and degradation when exposed to modern synthetic transmission fluids and high thermal loads.

Recommendation Logic

For daily drivers and commuters, prioritize reliability and thermal stability. A mid-range solenoid from a reputable OE-spec manufacturer is usually the best value. For performance-tuned vehicles or heavy-duty towing applications, invest in heavy-duty solenoids with reinforced coils and enhanced flow rates to handle the increased heat and pressure loads. Avoid 'no-name' generic parts for this specific component. The cost of a failed solenoid is significantly higher than the savings of a cheap part due to the labor required for transmission teardowns.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Torque Converter Lock Up Solenoids before you buy.

It acts as an electromagnetic switch that engages a mechanical clutch inside the torque converter, creating a direct physical connection between the engine and the transmission to improve fuel efficiency at cruising speeds.

Common symptoms include a noticeable drop in fuel economy, a 'slipping' sensation during highway driving, or a Check Engine Light triggered by transmission slip codes.

In many modern vehicles, the solenoid is accessible via a transmission pan removal, but in some designs, the torque converter must be pulled to access the internal components.

While a high-quality solenoid ensures more reliable engagement, it is designed for efficiency and smooth transitions rather than increasing raw horsepower or torque output.

OEM solenoids offer the highest compatibility and precise voltage tolerances, while high-quality aftermarket options are often more cost-effective for older vehicles with high mileage.

If the new solenoid is engaging too aggressively or failing to disengage, it can cause excessive friction and heat. Ensure the part is specifically rated for your vehicle's fluid type and pressure requirements.

Yes. If a solenoid is stuck in the 'engaged' position, it can cause the engine to stumble or stall when coming to a stop, as the engine remains mechanically linked to the drivetrain.
Research & Insights

Our Analysis of Torque Converter Lock Up Solenoids

120 Reviews Analyzed
13 Products Evaluated
2.6 Avg PM Score
10 Brands Ranked

Top 10 Torque Converter Lock Up Solenoids Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Cac 2 (18.2%)
  2. 02 Dolksn 1 (9.1%)
  3. 03 Generic 1 (9.1%)
  4. 04 Gjautoparts 1 (9.1%)
  5. 05 Jdmon 1 (9.1%)
  6. 06 Ldcre 1 (9.1%)
  7. 07 Linlins 1 (9.1%)
  8. 08 Sontian 1 (9.1%)
  9. 09 Srkj 1 (9.1%)
  10. 10 Wflnhb 1 (9.1%)

What Our Analysis Found

We've carried out a comprehensive analysis of 120 reviews on Torque Converter Lock Up Solenoids, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select Torque Converter Lock Up Solenoids priced around $70.07, with top brands including c & a scientific, jdmon, srkj, sontian, ldcre, edelbrock, cac, labwork and linlins and gjautoparts.

Our team of expert editors reviewed these high-quality items and handpicked the top 18 Torque Converter Lock Up Solenoids for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category — including gjautoparts, liyoustore, fliben autoparts, zhejiang songtian automotive motor system co., ltd, qisheng store, amazon.com, yongzhenghong autoparts, labwork-parts and lamda and dolksn.

We are dedicated to assisting our users in finding the right parts Products based on their needs, saving them considerable time when choosing which Torque Converter Lock Up Solenoids to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 18 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 HERCOO TCC Lock Up Converter Clutch Solenoid HERCOO 9.2 4.4 (96) Buy on Amazon
2 SRKJ Torque Converter Lock-up Solenoid for Subaru CVT SRKJ 8.1 3.8 (86) Buy on Amazon
3 LINLINS Torque Converter Lock Up Solenoid Valve LINLINS 5.1 5.0 (1) Buy on Amazon
4 Torque Converter Lock Up Solenoid Valve For Subaru Lineartro C & A Scientific 5.1 5.0 (1) Buy on Amazon
5 Labwork CVT Torque Converter Lock-Up Solenoid labwork 5.1 5.0 (1) Buy on Amazon
6 CAC Torque Converter Lock-up Solenoid for Lineartronic CVT CAC 4.9 4.7 (4) Buy on Amazon
7 DOLKSN Torque Converter Lock-Up Solenoid for Subaru CVT DOLKSN 4.8 4.4 (8) Buy on Amazon
8 JDMON Torque Converter Lock-up Solenoid for Subaru CVT JDMON 4.2 3.8 (8) Buy on Amazon
9 LDCRE Transmission Torque Converter Clutch Solenoid LDCRE 3.2 2.8 (7) Buy on Amazon
10 CAC Torque Converter Lock-Up Solenoid for Subaru CVT CAC 3.1 2.8 (5) Buy on Amazon
11 YEHETOP Torque Converter Lock-Up Solenoid for Subaru CVT YIHETOP 1.1 1.0 (1) Buy on Amazon
12 TR580 Torque converter Lock Up solenoid Compatibile with Lin CAC 1.1 1.0 (1) Buy on Amazon
13 WOWAUTO Torque Converter Lock Up Solenoid Valve WOWAUTO 0.0 0.0 Buy on Amazon
14 GJAUTOPARTS Torque Converter Lock-up Solenoid for Subaru CVT GJAUTOPARTS 0.0 0.0 Buy on Amazon
15 SONTIAN Torque Converter Lock-up Solenoid for CVT Transmissions SONTIAN 0.0 0.0 Buy on Amazon
16 Neresshery Torque Converter Clutch Lock-up Solenoid Neresshery 0.0 0.0 Buy on Amazon
17 Dual Linear Transmission Solenoid for Honda Vehicles Generic 0.0 0.0 Buy on Amazon
18 WFLNHB Torque Converter Lock Up Solenoid Valve WFLNHB 0.0 0.0 Buy on Amazon