Keep proper pressure on your coolant, replaces any modern blue or black cooling cap
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4691207
Mfg#:
420121321
In Stock
ON SALE!
SAVE 14%
$34.99
This product was last offered at the strikethrough price on 05-02-2026
Keep your cooling system efficient with a new thermostat and housing
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Aluminum housing used on the B5 S4 - Commonly used as a factory upgrade for the OE plastic piece
Brand:
ES#:
3659374
Mfg#:
07812112JKT4
In Stock
ON SALE!
$180.99
This product was last offered at the strikethrough price on 01-03-2026
Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Used to clean out your cooling system and restore efficiency
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat! This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship
Brand:
ES#:
3195914
Mfg#:
2051
In Stock
42% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$17.95
This product was last offered at the strikethrough price on 06-04-2026
Multiple adapters include to fit a variety of vehicles.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3673924
Mfg#:
B8800082
In Stock
ON SALE!
SAVE 15%
$32.99
This product was last offered at the strikethrough price on 05-02-2026
Upgrading cooling for your engine oil
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For custom applications only. Not a direct bolt on.
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
