Parts for your 2004 Subaru Impreza-Oil seals

2004 Subaru Impreza Oil Seals: What They Do and When to Replace

Oil seals are absolutely used on the 2004 Subaru Impreza. The Subaru Factory Service Manual for the 2004 Impreza (EJ20/EJ25) lists crankshaft front and rear oil seals, camshaft oil seals, oil pump seal, and transmission/differential axle/output oil seals in its engine and driveline sections. Subaru’s global parts catalogue (FAST) and dealer parts listings back this up with common EJ-series part numbers such as the front crank oil seal (often 806733030), camshaft oil seal (often 806732150), and rear main seal (often 806786040). So yes—oil seals are a key part of keeping this boxer engine and its driveline tidy and leak-free.

On a 2004 Impreza, oil seals keep engine oil and gear oil where they belong while letting rotating shafts spin freely. Up front, the crank and cam seals sit behind the timing covers