National 710481 Differential Pinion Seal - Rear Outer

National 710481 Differential Pinion Seal

National 710481 is a differential pinion seal built for rear outer applications that need a precise sealing surface and stable fit. It is used on Chrysler axle and ZF C235 differential setups found in Ram, Dodge, Chrysler, and Mitsubishi vehicles.

Key Features

• Fluoro-elastomer construction for sealing performance in driveline service
• Bi-directional lip design for consistent sealing at the pinion shaft
• Inside diameter: 1.893 in. / 48.080 mm
• Outside diameter: 2.816 in. / 71.530 mm
• Housing bore: 2.811 in. / 71.400 mm
• Thickness: 0.458 in. / 11.630 mm
• Flanged outside diameter: 3.032 in. / 77.000 mm
• Part description: oil seal

Detailed Description

This National differential pinion seal is engineered for rear outer axle service where the pinion area must stay sealed against gear oil leakage. The fluoro-elastomer material is selected for sealing durability, while the bi-directional lip design helps maintain contact at the shaft interface. National has supplied premium sealing solutions for more than 75 years, and this part reflects that focus on dimensional accuracy and modern driveline requirements. National 710481 also cross-references SKF 18852 for the same application.

Fits 2011-2019 Ram 1500, Rear Outer, with 9.25 in ring gear and ZF C235 differential. Fits 2019 Ram 1500 Classic, Rear Outer, with 9.25 in ring gear and ZF C235 differential. Fits 2000-2010 Dodge Dakota, Rear Outer, with 9.25 in ring gear and Chrysler axle. Fits 2000-2010 Dodge Ram 1500, Rear Outer, with 9.25 in ring gear and Chrysler axle. Fits 2007-2009 Chrysler Aspen, Rear Outer, with 9.25 in ring gear and Chrysler axle. Fits 2000-2009 Dodge Durango, Rear Outer, with 9.25 in ring gear and Chrysler axle. Fits 2006-2009 Mitsubishi Raider, Rear Outer, with 9.25 in ring gear and Chrysler axle. Fits 2000-2003 Dodge Ram 2500 Van, Rear Outer, with 9.25 in ring gear and Chrysler axle. Fits 2000-2003 Dodge Ram 3500 Van, Rear Outer, with 9.25 in ring gear and Chrysler axle. Fits 2000-2002 Dodge Ram 2500, Rear Outer, with 9.25 in ring gear and Chrysler axle.

What It Helps Address

• Gear oil seepage at the rear pinion area
• Contamination entering the differential through a worn seal
• Leak-related fluid loss around the pinion shaft
• Noise or driveline concerns tied to low differential fluid level
• Seal wear from age, heat, and axle service conditions

Installation Notes and Tips

Confirm the axle configuration, ring gear size, and differential type before ordering. Match the seal dimensions to the housing bore and shaft size, and inspect the pinion surface for wear or scoring before installation. Clean the bore and sealing surface thoroughly so the new seal seats evenly and maintains contact.

Quality Assurance

National is known for sealing products used in driveline and axle service, with design support aimed at current vehicle requirements. Part number 710481 is built to the listed dimensions and application data for accurate replacement selection.