Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

BMW E31 850Ci M70 5.0L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle BMW E31 850Ci M70 5.0L
Your Vehicle BMW E31 850Ci M70 5.0L
Change Clear

BMW E31 850Ci M70 5.0L Engine Cooling Temperature Sensors

Sort By
Filter By
Return to Top

Radiator Fan Switch

ES#2534474 - 61311378073 - Radiator Fan Switch - Measures radiator air temperature enabling the fan to turn off or on - URO - BMW

Measures radiator air temperature enabling the fan to turn off or on affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534474
Mfg#:
61311378073
In Stock
$26.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Race German Coolant Temperature Sender Adapter - 1/8NPT

ES#4493067 - RGCTSA1/8NPT - Race German Coolant Temperature Sender Adapter - 1/8NPT - Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! - Race German - BMW

Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race German - Corporate Logo
ES#:
4493067
Mfg#:
RGCTSA1/8NPT
Ships in 1 Business Day
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Switch

ES#2602123 - 61311378073 - Radiator Fan Switch - Measures radiator air temperature enabling the fan to turn off or on - Febi - BMW

Measures radiator air temperature enabling the fan to turn off or on affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2602123
Mfg#:
61311378073
In Stock at Vendor
$60.99

This product was last offered at the strikethrough price on
05-07-2026

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Switch

ES#2602122 - 61311378073 - Radiator Fan Switch - Measures radiator air temperature enabling the fan to turn off or on - Facet - BMW

Measures radiator air temperature enabling the fan to turn off or on affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Facet - Corporate Logo
ES#:
2602122
Mfg#:
61311378073
In Stock
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#34349 - 13621707366 - Coolant Temperature Sensor - Provides vital information to the driver - Genuine BMW - BMW

Provides vital information to the driver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34349
Mfg#:
13621707366
Special Order: No Guaranteed ETA
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$240.99

This product was last offered at the strikethrough price on
06-24-2026

$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Race German Coolant Temperature Sender Adapter - M12x1.5

ES#4493066 - RGCTSAM12 - Race German Coolant Temperature Sender Adapter - M12x1.5 - Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! - Race German - BMW

Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race German - Corporate Logo
ES#:
4493066
Mfg#:
RGCTSAM12
Ships in 2 Business Days
$35.99 USD
Free Shipping
on orders $49 and up

Coolant Temperature Sender

ES#4006894 - 12621747281 - Coolant Temperature Sender - 2 pin - Facet - BMW

2 pin affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Located in the water accumilator

Brand:
Facet - Corporate Logo
ES#:
4006894
Mfg#:
12621747281
Ships in 1 Business Day
$23.99

This product was last offered at the strikethrough price on
05-02-2026

$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Temperature Sensor

ES#31874 - 12621288158 - Water Temperature Sensor - M14x1.5 Thread - Genuine BMW - BMW

M14x1.5 Thread affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Located in the water accumilator

Brand:
Genuine BMW - Corporate Logo
ES#:
31874
Mfg#:
12621288158
Ships in 1-2 days
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$82.99

This product was last offered at the strikethrough price on
06-24-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#2816028 - 61311378073 - Coolant Temperature Sensor - Measures radiator air temperature enabling the fan to turn off or on - Hamburg Tech - BMW

Measures radiator air temperature enabling the fan to turn off or on affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816028
Mfg#:
61311378073
In Stock at Vendor
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#2162502 - 12621747281 - Coolant Temperature Sensor - 2 pin - FAE - BMW

2 pin affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Located in the water accumilator

Brand:
FAE - Corporate Logo
ES#:
2162502
Mfg#:
12621747281
In Stock
$13.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Inline Temperature Sensor Adapter - Manifold

ES#4500514 - tempswitchman - Inline Temperature Sensor Adapter - Manifold - Allows installation of NPT threaded temperature sensor - Zionsville Autosport - BMW

Allows installation of NPT threaded temperature sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Zionsville Autosport - Corporate Logo
ES#:
4500514
Mfg#:
TEMPSWITCHMAN
Special Order: No Guaranteed ETA
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sender

ES#3673665 - 9107471 - Coolant Temperature Sender - 2 pin - Hella - BMW

2 pin affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Located in the water accumulator

Brand:
Hella - Corporate Logo
ES#:
3673665
Mfg#:
9107471
Ships in 4 Business Days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Temperature Sensor

ES#4135498 - 12621288158 - Water Temperature Sensor - M14x1.5 Thread - Beru - BMW

M14x1.5 Thread affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Beru - Corporate Logo
ES#:
4135498
Mfg#:
12621288158
Ships in 1-2 days
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Sensor Gasket - Priced Each

ES#15796 - 07119963244 - Temperature Sensor Gasket - Priced Each - Seals the temperature sensor to the radiator - Genuine BMW - BMW

Seals the temperature sensor to the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
15796
Mfg#:
07119963244
Ships in 1-2 days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sender

ES#2873944 - 12621747281 - Coolant Temperature Sender - 2 pin - Febi - BMW

2 pin affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Located in the water accumulator

Brand:
Febi - Corporate Logo
ES#:
2873944
Mfg#:
12621747281
Back Ordered
Auto Notify
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Temperature Sensor

ES#2167430 - 12621288158 - Water Temperature Sensor - M14x1.5 Thread - FAE - BMW

M14x1.5 Thread affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Located in the water accumilator

Brand:
FAE - Corporate Logo
ES#:
2167430
Mfg#:
12621288158
Ships on Jul 20, 2026
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Temperature Sensors

A faulty temperature sensor can be a source of overheating problems and cooling leaks. Replace your temperature sensor with an OEM temperature sensor or aftermarket temperature sensor from our trusted list of manufacturers to bring your cooling system back up to par.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings