National 710398 Drive Axle Shaft Seal - Front Inner or Front Outer

Drive Axle Shaft Seal for Nissan Front Axles

National 710398 is a metric drive axle shaft seal built for front outer and front inner applications on select Nissan and INFINITI vehicles. It uses nitrile sealing material and precise dimensions to help maintain a secure seal at the axle shaft and housing interface.

• Part number: 710398
• Part description: oil seal
• Sealing material: nitrile
• Inside diameter: 1.969 in. / 50.000 mm
• Outside diameter: 2.843 in. / 72.200 mm
• Thickness: 0.394 in. / 10.000 mm
• Overall width with side lip: 0.571 in. / 14.500 mm
• Housing bore: 2.835 in. / 72.000 mm
• Flanged outside diameter: 3.268 in. / 83.000 mm
• Metric unit of dimension

Fitment and Application Details

Fits 1998-2004 Nissan Frontier, front outer, with Nissan R200A differential. Fits 1987-2004 Nissan Pathfinder, front outer, with Nissan R200A differential. Fits 2004 Nissan Pathfinder Armada, front outer, with Nissan R200A differential. Fits 2000-2004 Nissan Xterra, front outer, with Nissan R200A differential. Fits 1997-2003 INFINITI QX4, front outer, with Nissan R200A differential. Fits 1995-1997 Nissan Pickup, front outer, with Nissan R200A differential. Fits 1986-1994 Nissan D21, front outer, with Nissan R200A differential. Fits 1984-1986 Nissan 720, front inner. Fits 1983 Nissan 720, front inner, from 01/01/1983.

This part cross-references Centric Parts 417.42026 for the same application.

What This Seal Helps Address

• Gear oil seepage at the front axle shaft seal area
• Contamination entering the differential housing through a worn seal
• Fluid loss caused by hardened or damaged sealing lips
• Noise or driveline concerns related to low differential fluid level
• Service replacement for worn front outer or front inner axle seals

Installation Notes and Tips

Confirm the axle position, differential type, and seal dimensions before installation. Clean the housing bore and shaft sealing surface thoroughly, and inspect for grooves, corrosion, or wear that could affect sealing performance. Proper seating depth and alignment are important for a reliable repair on Nissan Frontier, Pathfinder, Xterra, and related applications.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop OE-style sealing components for modern driveline service. Part number 710398 reflects that focus on dimensional accuracy and material selection for axle seal replacement.