Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank
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Triangular Connector
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! From the 2003 model year
Triangular Connector
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! From the 2003 model year
Stop coolant loss and cure a fogged windshield
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Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color
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Square connector with rounded ends (95-102c)
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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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Install new hardware with your new parts. 6.6x19
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Used when installing new radiator mounts, requires one per mount
Seals the expansion tank cap to the reservoir. 28.5x3.8
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Si-OAT technology specifically engineered for modern BMW, VW, Audi, and Porsche vehicles.
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Brand:
ES#:
5435259
Mfg#:
904683
Back Ordered
$25.99
This product was last offered at the strikethrough price on 05-07-2026
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
