National 710920 Differential Pinion Seal - Front Outer

National 710920 Differential Pinion Seal

The National 710920 differential pinion seal is a metric oil seal built for driveline sealing at the front outer position on select Nissan and INFINITI applications. It uses a fluoro-elastomer sealing material and a counter-clockwise spiral lip design to support consistent sealing performance in demanding axle and transfer case service.

Key Features

• Part number 710920 differential pinion seal for driveline and axle sealing applications
• Fluoro-elastomer material for resistance to heat and fluid exposure
• Counter-clockwise spiral lip design
• Metric dimensions: 48.000 mm shaft / 85.300 mm outside diameter / 13.500 mm width
• Flanged outside diameter: 92.000 mm
• Housing bore: 85.000 mm
• Oil seal construction for differential pinion service

Product Details

National has supplied sealing products for more than 75 years, and the 710920 follows that focus with a metric oil seal design sized for precise fitment. Key dimensions include a 1.890 inch inside diameter, 3.358 inch outside diameter, and 0.531 inch width, with an overall width of 0.670 inch including the side lip. This seal is listed as Type 74 and Series 710900, and it cross-references Four Seasons 54417 for the same application.

Compatible With 2005-2015 Nissan Armada, Front Outer; 2004-2015 Nissan TITAN, Front Outer; 2007-2012 Nissan Pathfinder, Front Outer; and 2004-2010 INFINITI QX56, Front Outer, all with Spicer 205 Transfer Case. The National 710920 is a direct-fit sealing component for these driveline applications, including Nissan Armada and Nissan TITAN front outer service where the specified transfer case is used.

Common Issues Addressed

• Gear oil leakage at the differential pinion area
• Contamination entering the sealed driveline assembly
• Seal wear from heat, age, or fluid exposure
• Noise or driveline concerns associated with low lubricant level
• Service replacement for worn front outer seal locations

Installation Notes

Verify shaft, housing bore, and width dimensions before installation to confirm proper seating. Inspect the sealing surface for scoring or corrosion, and clean the bore thoroughly before pressing the seal into place. Confirm the counter-clockwise spiral lip orientation matches the application, and use the correct lubricant during assembly to avoid dry start-up.

Quality Assurance

National sealing products are backed by a long history in the aftermarket and are engineered to meet the dimensional requirements of modern vehicles. The 710920 is built with fluoro-elastomer sealing material and metric specifications for consistent fit in supported Nissan and INFINITI driveline applications.