Factory Air Engine Coolant Flange, 85685
In stock
$8.79
Listed as compatible with this vehicle by the retailer feed.
Check price2001 Audi S4 Thermostats
3 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
Motorad Standard Thermostat: 170 Degrees, 304-170
In stock
$24.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Coolant Housing/Water Outlet, CH7131
Out of stock
$148.99
Listed as compatible with this vehicle by the retailer feed.
Check price
This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.