Connects lower radiator port to 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 For vehicles with AHA engine code with VIN up to 3B-X-145 413 or 3B-XE173 715 only, split is in the 1999 model year
Brand:
ES#:
2642852
Mfg#:
8D0121055E
Ships in 1-2 days
$36.99
This product was last offered at the strikethrough price on 05-07-2026
Used in many locations in the cooling system
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Connects coolant pipe to oil cooler housing
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! Connects the oil cooler to the lower water pipe up to the 1999 model year
Brand:
ES#:
2713603
Mfg#:
078121096H
In Stock at Vendor
$7.61
This product was last offered at the strikethrough price on 10-22-2026
Located on the back of the cylinder head
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Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head
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Common source of leaks, mounted between your oil filter and engine block
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 VIN up to 3B-X-600 000 only, split is in the 1999 model year
Runs from radiator to reservoir and water pipe
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Runs from radiator to reservoir and water pipe
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!
Brand:
ES#:
2627318
Mfg#:
8D0121101AF
In Stock
$44.99
This product was last offered at the strikethrough price on 10-22-2026
Located on the back of the cylinder head
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Brand:
ES#:
2535197
Mfg#:
058121133B
Ships in 2 Business Days
$7.99
This product was last offered at the strikethrough price on 08-13-2026
Located on the lower radiator hose connection
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#:
4045813
Mfg#:
8D0959481B
Ships in 2 Business Days
$33.99
This product was last offered at the strikethrough price on 05-07-2026
Runs from the bottom of the expansion tank to the water pipe
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Mounts on radiator to determine coolant temperature for fan operation
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!
<font color='blue'>Blue</font> sensor with square connector. Please check existing sensor color
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 VIN up to 3B-X-491,580, split is in the 1999 model year.
Common source of leaks, mounted between your oil filter and engine block
10X 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 For vehicles with VIN up to 3B-X-600 000 only, split is in the 1999 model year
Brand:
ES#:
4939990
Mfg#:
078117021A
In Stock
ON SALE!
SAVE 22%
$36.99
This product was last offered at the strikethrough price on 05-02-2026
Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.
Lifetime Replacement
