SKF 25550A Differential Pinion Seal - Front

SKF Differential Pinion Seal 25550A

SKF 25550A is a differential pinion seal built for driveline sealing performance where the pinion shaft enters the axle housing. It uses a LongLife sealing surface and precise dimensions to help maintain lubricant control in the differential assembly.

Key Features

• Part number 25550A for differential pinion seal applications
• Outside diameter: 4.222 in.
• Shaft diameter: 2.559 in.
• Width: 0.394 in.
• LongLife sealing surface type for durable sealing contact
• SKF sealing design and premium material construction

Detailed Description

SKF 25550A is engineered for the pinion seal location in the driveline and axle system, where it helps retain gear oil at the differential pinion while keeping road debris and moisture out. The specified shaft diameter, outside diameter, and width support accurate sealing fitment in the intended housing and shaft interface. For buyers searching for a differential pinion seal for axle service, rear differential repair, or driveline leak correction, this SKF part number 25550A provides a direct replacement option backed by SKF sealing expertise. This part cross-references Chrysler (e.g., 68034401AA) for the same application.

What It Helps Address

• Gear oil leaking from the differential pinion area
• Contamination entering the axle housing through a worn seal
• Wet or oily residue around the pinion yoke or seal bore
• Noise or driveline wear caused by low differential lubricant level
• Seal deterioration from age, heat, and road exposure

Installation Notes and Tips

Inspect the pinion yoke, seal bore, and shaft surface before installation. Clean the housing thoroughly and verify the seal dimensions against the original part before assembly. Proper installation technique and correct pinion preload procedures are important during differential service. Search terms such as differential pinion seal for Chrysler axle repair, SKF 25550A rear differential seal, and pinion seal replacement for Chrysler vehicle driveline service are commonly used by shoppers comparing this part.

Quality Assurance

SKF has a long history in seal engineering and manufactures seals to defined application-specific designs using premium materials. The brand’s sealing products are built to support long service life and consistent sealing performance in demanding driveline environments. SKF 25550A is a technical replacement choice for Chrysler, Dodge, and Jeep driveline service where the original seal specification matches this part.