Parts for your 1998 Mitsubishi Pajero-Oil seals

1998 Mitsubishi Pajero Oil Seals — Purpose, Care, and When to Replace

Oil seals are absolutely used on the 1998 Mitsubishi Pajero. Mitsubishi’s factory workshop manuals for the late-’90s Pajero/Montero/Shogun, along with the Mitsubishi ASA electronic parts catalogue and well-known seal manufacturers’ catalogues (e.g., NOK, Corteco, Timken), list multiple oil seals across the engine, transmission, transfer case, and differentials. That means oil-seals are relevant to this model and form part of routine inspection during servicing.

This Pajero relies on oil seals to keep lubricants where they belong and grime where it doesn’t. Around the engine, seals sit at the front and rear of the crankshaft and at the camshafts, keeping engine oil inside while the shafts spin away under the timing covers and behind the flywheel. In the driveline, axle, pinion and output seals stop diff and transfer fluids sneaking past rotating shafts. Together, they protect bearings, keep oil pressures stable, and prevent messy leaks that can contaminate belts, clutches, and brake linings.

Oil seals aren’t a fixed-interval replacement item, they’re replaced on condition. During regular services, a mechanic will check for tell-tales like oil mist around the crank pulley, damp timing covers, weeping at diff flanges, or drips at the bellhousing. Any sign of oil on the clutch housing or inside a front hub deserves quick attention before it escalates into a slipping clutch or noisy bearing.

There are some smart moments to fit fresh seals while other jobs are underway. If the Pajero is in for a timing belt on a V6 or a front cover reseal on a diesel, it’s common to proactively replace the front crank and cam seals. Likewise, clutch replacement is a perfect time for a rear main seal. On the driveline, replacing a worn tailshaft uni or servicing a diff can pair neatly with new pinion or axle seals.

Good-quality seals, correct installation depth, and lightly greased lips help longevity. Shafts should be checked for grooves, if a sealing surface is worn, a repair sleeve can save the day. Fresh engine, diff and transfer oils at the right grade keep seals happy, and proper breather function stops pressure build-up that can push oil past even a new seal. Kept in check, the Pajero’s seals will do their job quietly for years, saving oil, money, and the driveway from stains.

Where do 1998 Pajero oil seals commonly leak?

Typical hot spots include the front crank seal behind the crank pulley, camshaft seals under the timing covers, the rear main seal at the bellhousing, and pinion and axle seals on the front and rear diffs. A misty timing area, wet diff flanges, or oil drops at the bellhousing are the usual clues.

Should oil seals be replaced during a timing belt or clutch job?

Yes, that’s often the best time. With access already open, fitting new front crank and cam seals during a timing belt service, or a rear main seal during a clutch, adds little labour and helps prevent doing the same job twice if a seal starts weeping later.

Is it safe to drive with a leaking oil seal?

Short-term, minor weeps may not strand the vehicle, but any leak can worsen. Engine leaks risk contaminating the timing belt or clutch, while diff or transfer leaks can drop fluid levels and damage gears and bearings. It’s best to book an inspection promptly and top up fluids if needed in the meantime.