Seals the expansion tank cap to the reservoir. 28.5x3.8
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Includes integrated coolant level sensor
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Connects the coolant pipe to the throttle body
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Brand:
ES#:
283609
Mfg#:
078121188B
Ships in 1-2 days
16% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$24.99
This product was last offered at the strikethrough price on 10-25-2026
Connects the lower radiator port to the thermostat housing
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Connects the oil cooler to the upper coolant pipe
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 from 3B-2-224 685 or VIN 3B-2E212 664 only, split is in the 2002 model year
Brand:
ES#:
4608321
Mfg#:
078121058AT
Ships in 1-2 days
$25.99
This product was last offered at the strikethrough price on 05-07-2026
Replacement 4 pin relay
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! Used for fan control
Brand:
ES#:
3143292
Mfg#:
443951253J
Back Ordered
$21.99
This product was last offered at the strikethrough price on 05-07-2026
Secures the coolant temperature sensor in place
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Blue 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 For vehicles with VIN up to 3B-X-491,580, split is in the 1999 model year.
Located on the lower side of the radiator
5X 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!
Keep your engine block sealed
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Brand:
ES#:
261775
Mfg#:
059103113
Ships in 2 Business Days
$3.99
This product was last offered at the strikethrough price on 05-07-2026
Replacement 4 pin relay
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 Used for fan control
Brand:
ES#:
2576222
Mfg#:
4H0951253
Ships in 1-2 days
$17.99
This product was last offered at the strikethrough price on 05-07-2026
Connects the oil cooler to the upper coolant pipe
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 from 3B-Y-000 001 through VIN 3B-1-049 999 only, splits are in the 2000 and 2001 model years
Includes the plug, o-ring and securing clip
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 coolant pipe to the throttle body
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 ATQ engine code only
Brand:
ES#:
4818505
Mfg#:
078121188B
In Stock
ON SALE!
SAVE 27%
$10.99
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
