Parts for your 2001 Nissan Pathfinder-Oil seals

2001 Nissan Pathfinder (R50) oil seals — what they do and how to look after them

Based on the Nissan Factory Service Manual for the 2001 Pathfinder (R50) — notably EM (Engine Mechanical), LC (Lubrication & Cooling), AT/MT (Transmissions), DLN/AXLE (Driveline & Axle) and TF (Transfer) — plus the Nissan FAST parts catalogue and major seal manufacturers’ catalogues, oil seals are absolutely used on this model. Both engine variants common to this year (VG33E and VQ35DE), along with the auto/manual gearboxes, TX10 transfer case, and R200A/H233B differentials, all rely on multiple oil seals.

On a 2001 Pathfinder, oil seals keep engine oil, gearbox fluid and diff oil where they belong while keeping dust and water out. They sit around spinning shafts and housings — think crankshaft, camshafts, axle stubs, pinions and the transfer case input/output. When healthy, they prevent drips, oil misting and premature wear of bearings and clutches. When tired, they weep, make a mess under the bonnet or underbody, and can take out a timing belt/drive belt, clutch or oxygen sensor with oil contamination.

Commonly referenced seals on this vehicle include:

• Engine front crank seal and rear main seal
• Camshaft seals and valve stem seals
• Automatic/Manual transmission input/output shaft seals
• Transfer case input/output seals
• Front axle shaft seals