Parts for your 1998 Subaru Forester-Oil seals

1998 Subaru Forester oil seals — fitment, purpose, and service advice

Oil seals are definitely fitted to the 1998 Subaru Forester. Subaru’s Factory Service Manual for the SF-series Forester (1997–1999, EJ20/EJ25) documents multiple engine, transmission, and differential oil seals in the Engine (ME), Lubrication (LU), Manual/Automatic Transmission (MT/AT), and Differential sections. The Subaru Genuine Parts catalog for the same model years also lists specific seals such as front and rear crankshaft seals, camshaft seals, oil pump seal, axle/diff seals, and transmission output/input seals (typical Subaru part families include 8067xx and 80673x). These technical sources confirm the Forester relies on oil seals to keep fluids in and contaminants out.

The 1998 Forester’s oil seals do the quiet, vital work of keeping engine oil, gearbox oil, and diff oil where they belong. Around the EJ-series engine, key seals include the front and rear crankshaft seals, camshaft seals, and the oil pump seal. In the driveline, expect front diff/axle seals, transmission input/output shaft seals, and rear diff pinion and side seals. When these age or harden, owners may notice oily weeps at the timing cover, damp bellhousing edges, or spots on the driveway. Left too long, a front leak can soak the timing belt, while a rear main leak can contaminate the clutch—so staying on top of it pays.

Best practice for this era Forester is to inspect for leaks at every service and plan proactive replacement of the front crank and camshaft seals when doing the timing belt (typically around 100,000 km or 5 years in AU/NZ conditions). If oil has reached the belt, replace the belt and tensioners as well. The rear main seal isn’t a routine item