SKF 17557 Differential Pinion Seal - Front or Rear

SKF Differential Pinion Seal 17557

SKF 17557 is a differential pinion seal built for driveline service where gear oil retention and contamination control matter. With a nitrile sealing surface and precise dimensional sizing, it is made for applications that require a reliable seal at the pinion shaft.

For drivers searching for a differential pinion seal for Ford Mustang or Chevrolet Camaro driveline repair, SKF 17557 provides the dimensional details needed to match the application. The part number 17557 is also commonly referenced in seal replacement searches for rear axle service.

Key Features

• Part type: differential pinion seal
• Sealing surface material: nitrile
• Shaft diameter: 1.750 in.
• Outside diameter: 2.754 in.
• Width: 0.313 in.
• SKF seal design and manufacturing standards for driveline sealing applications

Detailed Description

SKF 17557 is engineered as a pinion seal for the differential assembly, where it helps maintain lubricant at the pinion shaft interface while keeping road debris and moisture out of the housing. The nitrile sealing surface is selected for common driveline sealing demands, and the listed dimensions help confirm proper fit during differential service. If you are replacing a leaking pinion seal on a Ford Mustang or Chevrolet Camaro, verifying shaft diameter, outside diameter, and width is essential before installation. The part number 17557 should be matched to the vehicle’s axle specification and seal bore dimensions.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination entering the pinion seal interface
• Seal wear from age, heat, and driveline movement
• Service replacement for a leaking rear axle pinion seal
• Noise or driveline concerns caused by low differential lubricant level

Installation Notes and Tips

Confirm the shaft diameter, outside diameter, and seal width against the original part before installation. Inspect the pinion yoke and sealing surface for grooves, corrosion, or damage that could affect sealing performance. Clean the bore thoroughly and install the seal squarely to avoid distortion. Always verify axle and vehicle specifications before final assembly.

Quality Assurance

SKF has a long history in seal engineering and manufactures seals to defined design and material standards for automotive use. The brand’s focus on dimensional accuracy and durable sealing materials supports dependable driveline service.