National 710926 Drive Axle Shaft Seal - Front Inner

National 710926 Drive Axle Shaft Seal

National 710926 is a metric drive axle shaft seal built for front inner differential applications that demand precise sealing around the shaft. It uses fluoro-elastomer material and OE-style dimensions to help maintain a secure seal in the axle assembly.

• Drive axle shaft seal / oil seal for front inner differential use
• Inside diameter: 1.614 in. / 41.000 mm
• Outside diameter: 3.713 in. / 94.300 mm
• Housing bore: 3.701 in. / 94.000 mm
• Thickness: 0.945 in. / 24.000 mm
• Overall width with side lip: 1.087 in. / 27.600 mm
• Flanged outside diameter: 4.016 in. / 102.000 mm
• Fluoro-elastomer construction for sealing performance in driveline service

Fitment and Application Details

Compatible with front inner applications on 2011-2018 Chevrolet Silverado 2500 HD, 2011-2018 Chevrolet Silverado 3500 HD, 2011-2018 GMC Sierra 2500 HD, 2011-2018 GMC Sierra 3500 HD, 2011-2013 Chevrolet Suburban 2500, and 2011-2013 GMC Yukon XL 2500. These applications use a differential pinion bearing with a 9.25" ring gear and AAM axle with independent front suspension.

This part cross-references Bosch 16233 for the same application.

Detailed Description

National 710926 is part of National’s 710900 series and is engineered as a metric oil seal for driveline and axle sealing service. The seal’s 41 mm shaft size, 94.3 mm outside diameter, and 94 mm housing bore support accurate fitment in the front inner axle position. For Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD models, this seal helps maintain the differential’s internal sealing surface where the axle shaft passes through the housing. It also applies to Chevrolet Suburban 2500 and GMC Yukon XL 2500 vehicles listed in the fitment data.

What It Helps Address

• Gear oil leakage at the front inner axle shaft seal area
• Contamination entering the differential through a worn seal
• Seepage caused by hardened or damaged sealing lips
• Fitment issues from incorrect shaft or housing dimensions
• Service replacement needs on Silverado, Sierra, Suburban 2500, and Yukon XL 2500 driveline assemblies

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation. Clean the sealing surface and inspect the axle shaft for wear, scoring, or corrosion that could affect sealing. Confirm the application uses the listed front inner position and the differential configuration noted in the fitment data before ordering National 710926.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop seals for modern vehicle applications. National 710926 reflects that focus with metric sizing, fluoro-elastomer construction, and application-specific fitment for driveline service.