SKF 23751 Differential Pinion Seal - Rear

SKF 23751 Differential Pinion Seal Overview

SKF 23751 is a differential pinion seal built for driveline sealing at the pinion shaft. It uses a dual-lip design to help block dirt and water intrusion, while the Bore-Tite outer coating helps reduce oil seepage from minor housing bore imperfections. For differential service on vehicles such as Ford F-150 and Chevrolet Silverado applications, this seal supports a clean, leak-resistant repair.

Key Features

• Dual-lip sealing design with a radial lip and primary sealing lip
• Bore-Tite coating on the outer diameter to help seal minor bore scratches or imperfections
• LongLife sealing surface type for driveline sealing applications
• Shaft diameter: 2.375 in.
• Outside diameter: 4.504 in.
• Width: 0.896 in.
• SKF part number 23751 for differential pinion seal replacement

Detailed Description

SKF 23751 is a differential pinion seal designed to retain gear oil at the pinion area while helping keep contamination out of the axle assembly. The dual-lip construction adds a second sealing barrier, and the coated outer diameter helps the seal seat more effectively in the housing bore. This makes it a practical choice for differential service on Ford F-150, Chevrolet Silverado, and other driveline applications that use the same seal dimensions. This part cross-references CHR 23751 for the same application.

Common Problems This Seal Can Address

• Gear oil leaking from the differential pinion area
• Contamination entering the axle housing through a worn seal
• Oil seepage caused by minor housing bore imperfections
• Seal wear from age, heat, and driveline use
• Noise or driveline service concerns related to low differential fluid level

Installation Notes and Tips

Inspect the pinion yoke, seal bore, and shaft surface before installation. Clean the housing bore thoroughly and verify the seal dimensions match the application before pressing the seal into place. Proper pinion preload and differential fluid level should be checked after service. Fits should be confirmed by part number and measurements for Ford F-150 and Chevrolet Silverado applications using SKF 23751.

Quality Assurance

SKF has more than 100 years of sealing and bearing engineering experience, and this seal is manufactured to SKF quality standards for long service life and safety-focused driveline repair.