28 x 3.5mm
28 x 3.5mm at Drive Shaft
23 x 5mm
23 x 5mm at Coolant Pipe
Browse our selection of quality engine water pump housing o-ring parts designed specifically for your Audi S4. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Avant · Base · Cabriolet
Convertible · Sedan · Wagon
V8 4.2L
Automatic · Manual