Best Coolant Level Sensors in 2026
Daisy
Last Updated: Feb 10, 2026
Daisy
Last Updated: Feb 10, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Direct replacement - this engine coolant level sensor is designed to match the fit and function of the original sensor on specified vehicles
Ideal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction - this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Replacement resolves false "low coolant" indicator light warning
Replacement resolves failure to warn driver of dangerously low coolant level
Direct-fit OE replacement design is easily installed in coolant reservoir tank
Easy plug-and-play wiring connection
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon Global Store UK | 0.00 | ❌ | ❌ | ❌ |
Original febi bilstein spare part - Solutions „Made in Germany"
Please use the vehicle identification at the top of the page to confirm compatibility with your vehicle. All restrictions must be observed!
Material: Plastic; Weight: 0,401 kg
OE numbers (for comparison purposes only): VW 171 121 407 F
among others suitable for: VW: Caddy 1 (14), Caddy 1 (1A), Golf 1 (17), Golf 1 Cabrio (15), Golf 2 (19), Golf 2 syncro (1G), Jetta 1 (16), Jetta 2 (16), Jetta 2 syncro (1G), Passat 2 (32), Passat 2 (33), Passat 2 syncro (33), Santana (32), Scirocco (53)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| PANGOLIN Store | 9.11 | ✅ | ✅ | ✅ |
Part Number: 3612521 4903489 1673785C91 1673785C92
Part Name: 3612521 Coolant Fluid Level Sensor Switch
Note: 3612521 4903489 1673785C91 1673785C92 Coolant Fluid Level Sensor Switch for excavator replacement parts
Direct Replacement: Plug and play, easy to install, you could use it directly. 100% tested before shipping to ensure product safety, stability and durability.
Longer Service Life: High quality durability material and excellent crafts, as well as the applied series of tests in RD center before they were listed, provide a reliable operation and longer service life of this item.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| I'M Prince | 6.24 | ✅ | ✅ | ✅ |
1. OE number ：650648 23522855 23526907 904-7252 577.59506; Q21-6024S; Q21-6030-001; Q21-6030-004
2. Compatible For Various Freightliner Models (1999-2015) Select Kenworth / Peterbilt Models
3. Every sensor is tested to ensure trouble-free performance, direct aftermarket replacement
4. Connector Type:2 Way Terminal
5. Material Type:100% new Raw materials
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| HNHYJK | 4.35 | ✅ | ✅ | ✅ |
Item Type: New Coolant Level Sensor
Condition: New
Part Number: Q21-6007S Q216007S
Application：Compatible with Kenworth
Note: 1. Please tell us of your model or a view of nameplate when order this item to lower the error rate.Thanks. 2. There are no instructions included in this kit.It is recommended to install professionally.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Newparts | 9.54 | ❌ | ❌ | ❌ |
Direct replacement - this engine coolant temperature sensor is designed to match the fit and function of the original sensor on specified vehicles
Ideal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction - this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| I'M Prince | 5.26 | ✅ | ✅ | ✅ |
1. OE number ：19299321,S8122,10096163,FLS24,5S1449,SU1302,1802-240662,71-3558,240662,211-2002,CLS1, EE0017
2. Compatible For Century Regal Cutlass Cutlass Ciera Cutlass Cruiser Cutlass Supreme Intrigue Silhouette Bonneville Firebird Grand Prix Montana Trans Sport
3. Every sensor is tested to ensure trouble-free performance, direct aftermarket replacement
4. Connector Type:2Way Terminal
5. Material Type:100% new ABS plastic
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Direct replacement - this engine coolant temperature sensor is designed to match the fit and function of the original sensor on specified vehicles
Ideal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction - this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Offers Improved Engine Response and Performance
Eliminates Engine Coolant Leaks from Faulty or Damaged Components
Engineered to Help Lower Emissions and Improve Fuel Economy
Offer a Longer Sensor Life
Meets or Exceeds Original Equipment Manufacturer (OEM) Specifications
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
"replacement resolves false ""low coolant"" indicator light warning"
replacement resolves failure to warn driver of dangerously low coolant level
direct-fit oe replacement design is easily installed in coolant reservoir tank
easy plug-and-play wiring connection
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| PartsHawk | 9.43 | ❌ | ❌ | ❌ |
Direct replacement - this engine coolant temperature sensor is designed to match the fit and function of the original sensor on specified vehicles
Ideal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction - this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| I'M Prince | 6.24 | ✅ | ✅ | ✅ |
1. OE number ：KZ359001
2. Compatible For Kenworth ,Peterbilt coolant tank
3. Every sensor is tested to ensure trouble-free performance, direct aftermarket replacement
4. Connector Type:3 Way Terminal
5. Material Type:100% new ABS plastic
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Direct replacement - this engine coolant temperature sensor is designed to match the fit and function of the original sensor on specified vehicles
Ideal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction - this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Autoworth | 9.52 | ✅ | ✅ | ✅ |
Fits for: Kenworth T660 T800 W900,Peterbilt 348 365 367 382 384 385 386 389.
Replace part number: N9267001.
High quality: Made of high quality materials, after strict quality inspection before leaving the factory, longer service life, better performance.
Easy to install: Plug and play. Just spend a few minutes watching an installation video to complete the installation.
After-sales service. No need to worry about problems in the project. Please don't hesitate to contact us if there is any question, we will reply within 24 hours and help solve the problem.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Direct replacement - this engine coolant pressure sensor is designed and manufactured to match the fit and function of an original sensor on specified vehicle makes, years and models
Protects engine - monitors the pressure of the coolant system to detect improper pressure levels, and helps prevent engine overheating caused by coolant leaks
Durable construction - made of quality materials for reliable performance and service life
Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Direct replacement - this engine coolant level sensor is designed to match the fit and function of the original sensor on specified vehicles
Ideal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction - this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Direct replacement - this coolant pump motion sensor is designed to match the fit and function of the original sensor on specified vehicles
Ideal solution - this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
Durable construction - this sensor is made from quality components to ensure reliable performance and a long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Dorman | 8 |
| Mosypt | 3 |
| Uro Parts | 2 |
| Automkt | 1 |
| Febi Bilstein | 1 |
| Nayuank | 1 |
| Pangolin | 1 |
| Walker Products | 1 |
We've carried out a comprehensive analysis of 197 reviews on coolant level sensors, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select coolant level sensors priced around $46.16, with top brands including acdelco, zbn, dorman, uro parts, mosypt, pangolin, nayuank, automkt and standard motor products and partssquare
Our team of expert editors reviewed these high-quality items and handpicked the top 18 coolant level sensors for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include amazon.com, zbn auto parts, i'm prince, pangolin store, hnhyjk and autoworth and partssquare .
We are dedicated to assisting our users in finding the right sensors Products based on their needs, saving them considerable time when choosing which coolant level sensors to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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