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Coolant Temperature Sensors

Coolant Temperature Sensors for BMW 7 Series E38 (1995-2001)

Clear BMW chassis

Coolant temperature sensors are vital to your cooling system. If you're running a stock cooling system, a non-functional coolant temperature sensor can prevent your fan from flipping on or give you an inaccurate temp reading, preventing you from knowing when your vehicle is running hot. This can be a huge issue in particular if you're tracking your vehicle. Replace yours today!

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Race German Coolant Temperature Sender Adapter - M12x1.5

T#:6827887

Part#: RGCTSAM12

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$ 35.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor

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Race German Coolant Temperature Sender Adapter - 1/8NPT

T#:6827888

Part#: RGCTSA1/8NPT

In Stock

$ 35.99 USD

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$ 35.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor

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Facet Coolant Temperature Sensor - E38, E39

For vehicles with production date up to 09/1998

T#:2170

Part#: 61318360857

Ships in 1 Business Day

$ 31.70

This product was last offered at the strikethrough price on
08-11-2026

$ 28.99 USD

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$ 28.99 USD

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Engine radiator double temperature fan switch, 91/104 degree celsius. This switch is designed to activate the auxiliary fan at the specified temperatures.

This item fits the following BMWs:
1997-1998 E39 BMW 528i 540i
1995-1998 E38 BMW 740i 740il

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Coolant Temperature Sender

T#:586992

Part#: 12621747281

Ships in 1 Business Day

$ 23.99

This product was last offered at the strikethrough price on
05-03-2026

$ 19.99 USD

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$ 19.99 USD

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Water Temperature Sensor

T#:596874

Part#: 12621288158

Ships in 1-2 days

$ 44.99 USD

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$ 44.99 USD

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M14x1.5 Thread. Your vehicle is equipped with numerous gauges to allow you to have a better idea of what is going on under the hood. By monitoring these gauges, you can prevent premature engine damage due to low oil pressure or high coolant temperatures. If one isn't functional though, you are in the dark as far as that system goes. One of the most vital is coolant temperature. Replace the sensor to get your gauge working properly again.

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Hella Coolant Temperature Sender - E31, E32, E34, E36, E38

Located in the water accumulator Located in the cylinder head

T#:580139

Part#: 9107471

Ships in 4 Business Days

$ 15.99 USD

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$ 15.99 USD

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2 pin

Coolant Temperature Sensor

Located on water pump housing

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:594615

Part#: 13621703993

Ships on Oct 22, 2026

$ 18.99 USD

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$ 18.99 USD

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This is the coolant temperature sensor used in many BMW models from the mid-1990s to the mid-2000s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer.

This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement.

This coolant temp sensor fits the following BMWs:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3, located in cylinder head
1999-2003 E39 BMW 540i, located on side of water pump
1999-2001 E38 BMW 740i 740il, located on side of water pump
1995-1996 E38 BMW 750il, located on side of water pump
1990-1999 E31 BMW 850i 850ci, located on side of water pump
2000-2006 E53 BMW X5 3.0i, located in cylinder head
2000-2006 E53 BMW X5 4.4i/4.6is/4.8is, located on side of water pump
1997-2002 Z3 BMW Z3 2.5i Z3 3.0i, located in cylinder head

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Coolant Level Sensor

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:594511

Part#: 61318360876

Ships on Oct 22, 2026

$ 27.99 USD

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$ 27.99 USD

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Monitors the coolant level in the expansion tank. This sensor is critical in keeping tabs of your cooling systems health.

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