National 711088 Differential Pinion Seal - Rear Outer

Overview

National 711088 is a differential pinion seal built for rear outer applications that use the Nissan R230V differential. It is a metric oil seal with a clockwise-spiral lip design and polyacrylate construction for controlled sealing performance.

Fits 2014-2018 INFINITI QX80, rear outer; 2017-2018 Nissan Armada, rear outer; 2005-2015 Nissan Armada, rear outer; 2014-2015 INFINITI QX70, rear outer; 2013 INFINITI FX37, rear outer; 2009-2013 INFINITI FX50, rear outer; 2004-2013 INFINITI QX56, rear outer; 2009-2012 INFINITI FX35, rear outer; 2004-2012 Nissan Pathfinder, rear outer; 1997-2006 INFINITI Q45, rear outer; 2004 Nissan Pathfinder Armada, rear outer; 1990-1996 Nissan 300ZX, rear outer.

Key Features

• Clockwise-spiral lip design for sealing consistency.
• Polyacrylate sealing material for durability in driveline service.
• Metric dimensions for precise housing and shaft matching.
• National Series 711000 oil seal design.
• Cross-references Nissan 38189-7S000 for the same application.

Product Details

National 711088 is engineered as a differential pinion seal for vehicles equipped with the Nissan R230V differential. The seal’s 86.0 mm housing bore, 50.0 mm shaft size, and 22.5 mm overall width with side lip provide the dimensional profile needed for a proper service replacement. This part is used on INFINITI QX80, Nissan Armada, and related applications where pinion sealing is critical to keeping differential lubricant contained at the rear outer position.

National has supplied sealing products for more than 75 years, and the 711000 series reflects that focus on modern sealing design. If you are servicing a Nissan Pathfinder, INFINITI QX56, or Nissan 300ZX with the specified differential, 711088 offers a direct-fit sealing solution matched to the listed application.

Common Issues This Part Addresses

• Differential oil seepage at the pinion seal area.
• Fluid loss that can lower lubricant level in the differential.
• Contamination entering the differential through a worn seal.
• Noise or wear concerns related to inadequate sealing.
• Service replacement needs for the rear outer pinion seal location.

Installation Notes and Tips

Confirm the vehicle uses the Nissan R230V differential before ordering. Match the housing bore, shaft diameter, and seal width to the original part during service. Clean the sealing surface thoroughly and inspect the pinion area for wear or damage before installing the new seal.

Quality Assurance

National backs this seal with more than 75 years of sealing product experience and ongoing design development for current vehicle applications.