Keep proper pressure in your coolant system
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Brand:
ES#:
4004591
Mfg#:
5Q0121321
In Stock
ON SALE!
$16.99
This product was last offered at the strikethrough price on 06-29-2026
Seal for most clip-in cooling sensors/senders. M19.6x3.6mm
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Bring your car to operating temperature.
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Brand:
ES#:
5335359
Mfg#:
044121113
In Stock
ON SALE!
SAVE 24%
$14.99
This product was last offered at the strikethrough price on 05-02-2026
Install a brand new expansion tank with a new cap and hardware
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Brand:
ES#:
2966326
Mfg#:
8D0121403LXKT
Ships in 3 Business Days
ON SALE!
$49.99
This product was last offered at the strikethrough price on 05-02-2026
Connects the lower radiator port to the water pump and expansion tank
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Brand:
ES#:
4871968
Mfg#:
4B0121055J
In Stock
Limited Qty Sale
$50.99
This product was last offered at the strikethrough price on 05-02-2026
Keep proper pressure in your coolant system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
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
