Typically located in the thermostat housing or radiator hose
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat! For vehicles with production date from 12/1984
Measures radiator air temperature enabling the fan to turn off or on
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat! For vehicles with production date from 09/1987
Located in the thermostat housing
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Located in the thermostat housing
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
2561418
Mfg#:
12621710512
In Stock
$28.65
This product was last offered at the strikethrough price on 10-01-2026
Monitors coolant temperature
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date from 09/1985
Brand:
ES#:
2611387
Mfg#:
12621710511
Ships in 1-3 days
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$58.99
This product was last offered at the strikethrough price on 10-26-2026
Splice into your cooling system to add an aftermarket coolant temperature sensor and gauge!
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4493067
Mfg#:
RGCTSA1/8NPT
In Stock
Limited Qty Sale
$35.99
This product was last offered at the strikethrough price on 10-07-2026
Rethreaded to Match the M5x/S5x head when doing a engine swap
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Measures radiator air temperature enabling the fan to turn off or on
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date from 09/1987
Measures radiator air temperature enabling the fan to turn off or on
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat! For vehicles with production date from 09/1987
Brand:
ES#:
2602123
Mfg#:
61311378073
In Stock
$60.99
This product was last offered at the strikethrough price on 05-07-2026
Replace your failed coolant temperature sensor
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4815518
Mfg#:
13621362599
Ships in 1 Business Day
$274.99
This product was last offered at the strikethrough price on 05-07-2026
Typically located in the thermostat housing or radiator hose
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date from 12/1984
Brand:
ES#:
2682192
Mfg#:
13621709967
Ships in 1 day
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 10-26-2026
Monitors coolant temperature
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date up top 09/1985
Brand:
ES#:
2728515
Mfg#:
62111268355
Ships in 1 day
2% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$50.99
This product was last offered at the strikethrough price on 10-26-2026
Coolant temperature sending unit to keep your engine running right
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
31872
Mfg#:
12621285073
Ships in 2 Business 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.
$125.99
This product was last offered at the strikethrough price on 10-26-2026
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.
Lifetime Replacement
