Engine Coolant Pipe O-ring (34.2x4.0mm) - for V8 and V12 engines (Genuine BMW)
- BMW 5 Series: E34, E39, E60, E61 (Models: 530i, 540i, 545i, 550i).
- BMW 6 Series: E63, E64 (Models: 645Ci, 650i).
- BMW 7 Series: E32, E38, E65, E66, F01, F02 (Models: 740i, 740iL, 745i, 750i, 750iL, 750Li, 760i, 760Li).
- BMW 8 Series: E31 (Models: 840Ci, 850i, 850Ci, 850CSi).
- BMW X5 Series: E53 and E70 (V8 configurations including 4.4i, 4.6is, and 4.8i).
- BMW Z8 Roadster: E52 (Alpina V8 variants).
Common Failure Symptoms: Low coolant dash lights, mysterious coolant pooling down the back of the engine block, or crusty white/blue coolant residue collecting along the valley pan weep lines
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