Best Performance Transmission Hard Parts in 2026

Direct replacement - this shift interlock actuator is made to match the fit and performance of the original actuator on specific vehicle applications

Ideal solution - this actuator is a reliable replacement for an original part that has failed due to collision damage or fatigue

Durable construction - this part is made from quality materials to ensure reliable performance and long service life

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life

Eliminates shift overlap and excess wear on clutches and bands due to slippage

Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications

This is the lever that attaches select B&M shifters to the transmission

Applications include GM TH400, 350, 250, 2004R, and 700-R4 transmissions

Genuine B&M accessory

Professional, premium aftermarket replacement

Provides the performance and dependability you expect from ACDelco

Manufactured to meet expectations for fit, form, and function

Billet aluminum offers rigidity

3/4-48 spline allows proper ratio

Designed for column shift

Cable and housing can be cut.

Portable and lightweight, very easy to carry and put away.

Stainless braided for durability and smooth operation.

Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life

Eliminates shift overlap and excess wear on clutches and bands due to slippage

Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications

1Pcs TCC/Lock Up Solenoid, 2Pcs Shift Solenoid

Interchange Part Number: 85420-22080 / 35250-50030, 85420-30110 / 85420-301230 / 35250-50030

Fits 340 / A340E / A340F / A340G / AW4 / A340

Externally mounted and easy to replace

Manufactured to meet or exceed original equipment specs

Package Dimensions: 5.842 L x 5.842 H x 9.398 W (centimeters)

1Pcs A500 A518 Pressure Sensor, 1Pcs A518 46RE Solenoid

Interchange Part Number: 4617210, 56041403AA, 42RE 44RE 46RE 47RE

Fits for 96-99 Dodge Ram Jeep Grand Cherokee

Manufactured to meet or exceed original equipment specs

Package Dimensions: 8.128 H x 15.24 L x 8.89 W (centimetres)

Package Weight: 0.9 pounds

Feature aluminum fittings

Adaptable to all types of manifolds

High performance

1pcs Shift Control Solenoid ("A") (Mazda "E"), 1pcs Shift Control Solenoid ("B") (Mazda "F")

Interchange Part Number: XS4Z-7H148-AA

Compatible with FN4A-EL / 4F27E Transmission for Focus, Protege, Mazda 3 5 6

Takes the guesswork out of controlling the lock-up function on your TH700R4 overdrive transmission

Works with both carbureted and fuel injected engines; Saves you from having to buy any separate, expensive computer-controlled equipment

Provided vacuum controlled switch and 4th gear pressure switch controls the torque converter lock up solenoid

Fitment:This kick down cable is fit for Ford C6 Transmission.

Great Replacement:This Braided Transmission Detent cable kit includes the mounting accessories and cable for easy and quick use, saving lots of time and money for you. If you have any problems, do not hesitate to firstly check product description.

Easy to Install:Stainless kick down cable is easy to install, very suitable for replacing old or damaged kick down cables.

Fits for GM Transmission Cables. For Transmission Kickdown. For Carburetor Hookup.

Features: Effective Mounting Point. Mounting point for transmission kickdown.

Diameter measures 5/16".

【High Efficiency】-- Professional transmission shift control solenoid valve, designed to increase the performance and efficiency of your engine

【Compatible Vehicle Models】-- Fit for Hyundai / Kia / Mitsubishi / . Original standard transmission solenoid valve, direct replacement for old or broken one

【Manufacturer Part Number】-- Our transmission shift solenoid adopted materials that meet strict OEM requirements, high reliability. Replacement Manufacturer Part Number KM F4A41, F4A42, F4A51, please refer to the product description for more numbers

Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life

Eliminates shift overlap and excess wear on clutches and bands due to slippage

Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications

Fit type : Vehicle Specific

Package Dimensions: 36.322 L x 10.414 H x 30.988 W (centimeters)

Features Reverse Shift Pattern with Safe Neutral

Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life

Eliminates shift overlap and excess wear on clutches and bands due to slippage

Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications

Racing Power Company R6051 Braided Stainless Transmission Kick Down Assembly

Country Of Origin : Taiwan

The Package Height Of The Product Is 5.46 Inches

The Package Length Of The Product Is 8.23 Inches

【Current and Voltage】: Input: 12V-24V DC | Output: 12V-24V DC / Maximum Current: 20 A. Cable length: 100cm, inner conductor, core cross section: 0.5 mm².

【Good Transmission Performance】: The cigarette lighter socket is made of high-quality and durable flame-retardant hard plastic, which can prevent your device from short circuit caused by overcurrent, overvoltage, overload, and overheating!

【Waterproof and Dustproof Design】: The socket has a rubber cover design, which can be waterproof and dustproof during daily use, effectively protect the internal circuit and wire!

Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life

Eliminates shift overlap and excess wear on clutches and bands due to slippage

Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications

Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life

Eliminates shift overlap and excess wear on clutches and bands due to slippage

Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications

Note: This part is a refurbished part,If you have to replace the solenoids or valve body, or reprogram the system, always perform the adaptive relearn. If you don’t, you could run into harsh or erratic shifting.

Part Number:4L60E 4L65E 4L70E

Fitment:Compatible with Fits all GM Products with the 4L60E Model Automatic Transmission 2003-On

Interchange Part Number:FOR benz 722.6 gearbox repair kit

Apply to the following models: 722.605 BENZ 5-SPEED 1996-ON, 722.620-633 BENZ 5-SPEED 1996-ON, The 722.6 Automatic Transmission Solenoids Set

Attention: our product is refurbished with high quality, it indeed is not brand new, please don't worry to use it.

Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life

Eliminates shift overlap and excess wear on clutches and bands due to slippage

Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications

OE number: Reference OEM number is 02E325039, 02E325025AN, 02E927770AQ, 02E325025AS.Easy to use and quick to install, and will not take up much of your time, very convenient.this part has undergone extensive testing to ensure a quality fit and long service life

For SEAT: Can directly replace the broken or shabby one, this is perfect to fit for SEAT ALHAMBRA/LEON/TOLEDO. Professional manufacturing, superb craftsmanship and high accuracy help to provide the best performance.

Excellent mechanical stability: Made of high quality ABS and metal materials, which makes it have excellent mechanical stability and protection.this part is made from quality materials for durability