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Product details
Part NameCoolant Temperature Sensor
BrandWalker Products
Part Number211-91035
UPC00724620066405
Estimate Delivery Date
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If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.
Walker Products Engine Coolant Temperature Sensors are designed to provide the engine control module (ECM) with real-time temperature data from the cooling system. This information is essential for proper fuel injection, ignition timing, cold start enrichment, and fan operation. An accurate reading from the coolant temperature sensor allows the ECM to optimize engine performance, fuel economy, and emissions. Each Walker sensor is engineered to match OE specifications for resistance values, thermal response, and signal output, ensuring reliable integration with factory systems. Built with durable, heat-resistant materials, these sensors are made to withstand constant exposure to coolant, vibration, and extreme temperature swings. A direct-fit design ensures easy installation with no modifications required. Whether replacing a failed sensor or addressing a check engine light, Walker Products delivers the quality and accuracy technicians trust.
Characteristics include:
Durable materials ensure long service life in hot, high-vibration environments.
Monitors engine coolant temperature to optimize fuel delivery and ignition timing.
Direct-fit replacement simplifies installation and restores sensor function.
Enables ECM to protect engine from overheating and improve cold starts.
Built to match OE specifications for signal response and thermal accuracy.
Watch genuine customer videos showing their upgrades and honest results of similar products
Fitment Table
This product is compatible with these vehicles:
Year
Make
Model
Notes
Position
1995
BMW
530i
3.0L
V engine
8 cylinders
3.31" bore
2.66" stroke
1995
BMW
540i
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1995
BMW
740i
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1995
BMW
740iL
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1995
BMW
840Ci
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1995
BMW
850CSi
5.6L
V engine
12 cylinders
3.39" bore
3.15" stroke
2 Terminals
1994
Audi
S4
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1994
Audi
V8 Quattro
4.2L
V engine
8 cylinders
3.33" bore
3.65" stroke
1994
BMW
530i
3.0L
V engine
8 cylinders
3.31" bore
2.66" stroke
1994
BMW
540i
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1994
BMW
740i
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1994
BMW
740iL
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1994
BMW
750iL
5.0L
V engine
12 cylinders
3.31" bore
2.95" stroke
2 Terminals
1993
Audi
S4
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1993
Audi
V8 Quattro
4.2L
V engine
8 cylinders
3.33" bore
3.65" stroke
1993
BMW
535i
3.5L
Inline engine
6 cylinders
3.62" bore
3.39" stroke
1993
BMW
740i
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1993
BMW
740iL
4.0L
V engine
8 cylinders
3.50" bore
3.15" stroke
1993
BMW
750iL
5.0L
V engine
12 cylinders
3.31" bore
2.95" stroke
2 Terminals
1992
Audi
S4
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1992
Audi
V8 Quattro
4.2L
V engine
8 cylinders
3.33" bore
3.65" stroke
1992
BMW
535i
3.5L
Inline engine
6 cylinders
3.62" bore
3.39" stroke
1992
BMW
750iL
5.0L
V engine
12 cylinders
3.31" bore
2.95" stroke
2 Terminals
1991
Audi
V8 Quattro
3.6L
V engine
8 cylinders
3.19" bore
3.39" stroke
1991
BMW
535i
3.5L
Inline engine
6 cylinders
3.62" bore
3.39" stroke
1991
BMW
750iL
5.0L
V engine
12 cylinders
3.31" bore
2.95" stroke
2 Terminals
1990
Audi
V8 Quattro
3.6L
V engine
8 cylinders
3.19" bore
3.39" stroke
1990
BMW
535i
3.5L
Inline engine
6 cylinders
3.62" bore
3.39" stroke
1990
BMW
750iL
5.0L
V engine
12 cylinders
3.31" bore
2.95" stroke
2 Terminals
1989
BMW
535i
3.5L
Inline engine
6 cylinders
3.62" bore
3.39" stroke
1989
BMW
750iL
5.0L
V engine
12 cylinders
3.31" bore
2.95" stroke
2 Terminals
1988
Audi
90
2.3L
Inline engine
5 cylinders
3.25" bore
3.40" stroke
1988
BMW
535i
3.5L
Inline engine
6 cylinders
3.62" bore
3.39" stroke
1988
BMW
535is
3.5L
Inline engine
6 cylinders
3.62" bore
3.39" stroke
1988
BMW
750iL
5.0L
V engine
12 cylinders
3.31" bore
2.95" stroke
2 Terminals
1988
Volkswagen
Golf
1.6L
Inline engine
4 cylinders
3.13" bore
3.15" stroke
1988
Volkswagen
Quantum
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1987
Audi
4000 Quattro
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1987
Audi
Coupe
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1987
Volkswagen
Quantum
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1986
Audi
4000 Quattro
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1986
Audi
Coupe
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1986
BMW
524td
2.4L
Inline engine
6 cylinders
3.15" bore
3.19" stroke
1986
Volkswagen
Quantum
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1985
Audi
4000 Quattro
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1985
BMW
524td
2.4L
Inline engine
6 cylinders
3.15" bore
3.19" stroke
1985
Volkswagen
Quantum
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
1984
Audi
4000 Quattro
2.2L
Inline engine
5 cylinders
3.19" bore
3.40" stroke
See what other customers say:
Customer Reviews
Overall rating: 4.9 / 5 from 594 reviews.
I love PartsPioneer. The rear-wheel Positive Plus pads and Genius rotors fit perfectly on my 2019 Subaru Forester. Excellent quality at a fair price. Highly recommended.
Thanks for catching an error in my order and righting it for me, complete with email to say so! This … is what customer service head and shoulders above, looks like !! Well done all !!
Service was great, appreciated the phone call to confirm the vehicle. Parts arrived quick. OEM fit. Will be ordering brakes as you can see by the picture. Very impressed.
I have bought this rotor on part pioneer for my Q3 and installed and used for over a week, they are amazing no squeaks no noises brakes have improved 110%. This rotors are the best so far I’ve always bought rotors and used in all three of my cars and so far these ones are the best that I have ever bought.
Thanks
Renato
Awesome parts, for a great deal, and the customer service is second to none, always willing to help, and they double check fitment to ensure you always get the right parts! Will definitely be ordering again.