SKF 18922 Differential Pinion Seal - Rear

SKF Differential Pinion Seal 18922

SKF 18922 is a differential pinion seal built for rear axle sealing applications where lubricant retention and contamination control are critical. With a nitrile sealing surface and precise dimensions, it is suited for service on classic Cadillac and Ford driveline setups that require an accurate shaft and housing seal.

Key Features

• Part number 18922 differential pinion seal from SKF
• Nitrile sealing surface type for dependable oil sealing performance
• Outside diameter: 3.254 in.
• Shaft diameter: 1.875 in.
• Width: 0.484 in.
• Designed for rear differential pinion sealing applications
• Fits 1960-1969 Cadillac DeVille, rear
• Fits 1965-1969 Cadillac Fleetwood, rear
• Fits 1958-1959 Cadillac DeVille, rear, Carrier No. 1473735 & 1473782
• Fits 1953-1955 Ford F-250, rear, Rockwell Std. Axles
• Fits 1953-1955 Ford F-350, rear, Rockwell Std. A150 Axle

Detailed Description

SKF 18922 is a rear differential pinion seal engineered to help maintain proper lubrication at the pinion shaft while keeping road debris and moisture out of the axle assembly. SKF has a long history in seal design and manufacturing, and this part reflects that focus with application-specific construction and premium materials selected for the operating environment. It is a direct-fit service part for select Cadillac DeVille and Fleetwood models, as well as Ford F-250 and F-350 trucks with the listed rear axle configurations. This part cross-references 1473736 and 145818922 for the same application.

What This Seal Helps Address

• Gear oil seepage at the differential pinion area
• Contamination entering the rear axle housing
• Wear-related sealing loss at the pinion shaft
• Service replacement for aging rear differential seals
• Leak repair on classic Cadillac and Ford rear axle assemblies

Installation Notes and Tips

Verify shaft diameter, outside diameter, and width before installation to confirm the seal matches the axle housing and pinion interface. 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. Confirm the axle configuration and notes, especially on 1958-1959 Cadillac DeVille with Carrier No. 1473735 & 1473782 and 1953-1955 Ford trucks with Rockwell axle specifications.

Quality Assurance

SKF manufactures seals to defined design standards using materials selected for the application and its operating conditions. The brand’s seal engineering background and long-running OE-focused manufacturing approach support consistent fit and sealing performance for driveline service.