Parts for your 2020 Nissan Pathfinder-Oil seals

2020 Nissan Pathfinder oil seals

Per the 2020 Nissan Pathfinder (R52) Factory Service Manual — EM (Engine Mechanical), TM-CVT (Transaxle & CVT), and FAX/RAX (Front/Rear Axle & Final Drive) — this model uses multiple oil seals, including front and rear crankshaft seals, camshaft seals, CVT output/drive shaft seals, transfer case seals (4WD) and rear differential pinion/side seals. Parts catalogues for the R52 likewise list these seals by part number. So oil seals are very much fitted and relevant to the 2020 Pathfinder.

On a 2020 Pathfinder, oil seals keep engine oil, CVT fluid and diff oil where they belong and stop dust and water getting in. They sit around rotating shafts — think crankshaft, camshafts, axle stubs and the diff pinion — and maintain a fine film of lubricant on a precision lip. When they harden, groove, or the mating surface wears, you’ll see weeps, drips or a mist of oil nearby.

Typical places owners or techs spot issues are the front of the engine (front crank seal), the bellhousing area (rear main seal), around the CVT’s driveshaft exits, the transfer case on 4WDs and the rear diff flanges. Left alone, leaks can drop engine oil, CVT fluid or diff oil levels and lead to costly repairs.

During routine servicing, it’s smart to:

• Scan under the bonnet and undertray for fresh oil, damp dust build-up or burnt-oil smells.
• Check around the crank pulley, timing cover joins, CVT output seals, transfer case and diff flanges.
• Verify engine oil, CVT fluid and diff oil levels and condition if any leak is suspected.

If a seal’s leaking, replacement is the go — seals aren’t a service item by time or kilometres, they’re replaced on condition or when nearby work is done. Front crank seals usually need the balancer off