Common source of leaks, mounted between your oil filter and engine block
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
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
Includes sealing O-Ring
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! Lower temperature thermostat, stock is 87°C
Seals the expansion tank cap to the reservoir. 28.5x3.8
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Connects lower radiator port to the thermostat housing
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Si-OAT technology specifically engineered for modern BMW, VW, Audi, and Porsche vehicles.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5435259
Mfg#:
904683
Back Ordered
$25.99
This product was last offered at the strikethrough price on 05-07-2026
Includes integrated coolant level sensor
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O-ring used in various areas on your European vehicle
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 24x3 O-ring that is seated between the hard coolant pipe and thermostat housing
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.
