National 711076 Differential Pinion Seal - Rear Outer

National 711076 Differential Pinion Seal

National 711076 is a differential pinion seal built for rear axle sealing performance in select Ram heavy-duty applications. It uses a fluoro-elastomer sealing material and a counter-clockwise spiral lip design to help maintain a tight seal at the pinion shaft.

Compatible with 2014-2018 Ram 2500 rear outer applications with 11.5 in ring gear and AAM axle, and 2014-2018 Ram 3500 rear outer applications with 2.25 in bearing inside diameter. National 711076 is a direct-fit sealing component for service work on the rear differential.

Key Features

• Part number: 711076
• Differential pinion seal / oil seal design
• Fluoro-elastomer material for sealing durability
• Counter-clockwise spiral lip design
• Metric dimensions for accurate axle service fitment
• Flanged outside diameter: 4.508 in (114.500 mm)
• Outside diameter: 4.295 in (109.100 mm)
• Housing bore: 4.287 in (108.900 mm)
• Shaft size: 2.677 in (68.000 mm)
• Overall width with side lip: 0.709 in (18.000 mm)

Detailed Description

National 711076 is engineered as a rear differential pinion seal for service on select Ram 2500 and Ram 3500 models. The seal’s fluoro-elastomer construction is selected for sealing applications where heat and fluid exposure are part of normal driveline operation, while the spiral lip profile supports controlled sealing at the pinion shaft. National has supplied sealing solutions for decades and applies current design practices to meet modern vehicle requirements.

This part cross-references SKF 26750A for the same application. If you are replacing a leaking pinion seal on a Ram 2500 or Ram 3500 rear axle, National 711076 provides the dimensional and application-specific match needed for the repair.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Fluid loss from a worn or hardened pinion seal
• Contamination around the rear axle pinion yoke
• Noise or driveline issues caused by low differential fluid level
• Seal wear from age, heat, or mileage

Installation Notes and Tips

Verify axle configuration before installation. This seal is listed for 2014-2018 Ram 2500 rear outer applications with 11.5 in ring gear and AAM axle, and 2014-2018 Ram 3500 rear outer applications with 2.25 in bearing inside diameter. Inspect the pinion yoke, shaft surface, and housing bore for wear or damage before pressing in the new seal. Clean the sealing surfaces thoroughly and confirm the seal is seated squarely to help prevent repeat leakage.

Quality Assurance

National is a long-established sealing brand with more than 75 years in the industry, and its product development focuses on current vehicle sealing requirements. Part number 711076 is built to support precise fitment for the specified Ram rear axle applications.