SKF 18990 Wheel Seal - Rear

SKF 18990 Rear Wheel Seal for Cadillac and Oldsmobile

SKF 18990 is a rear wheel seal built for specific Cadillac Eldorado and Oldsmobile Toronado applications. It uses a nitrile sealing surface and precise dimensions to help maintain proper sealing at the wheel end, where lubricant retention and contamination control are critical.

• Brand: SKF
• Part Number: 18990
• Wheel seal for rear axle applications
• Nitrile sealing surface type
• Outside diameter: 2.565 in.
• Shaft diameter: 1.886 in.
• Width: 0.250 in.

Application Details

This SKF 18990 wheel seal is specified for rear positions on 1967-1978 Cadillac Eldorado and 1966-1978 Oldsmobile Toronado. It is engineered for the sealing interface at the axle/wheel end, where correct fit and material selection matter for long-term service. This part cross-references 1605397 and 145818990 for the same application.

What This Seal Helps Address

• Gear oil or lubricant seepage at the wheel end
• Contamination entering the sealed axle area
• Wear related to an aged or hardened seal lip
• Service issues on rear axle sealing surfaces
• Fitment replacement needs for Cadillac Eldorado and Oldsmobile Toronado rear applications

Installation Notes and Tips

Verify shaft diameter, outside diameter, and seal width before installation to confirm proper fit. Inspect the sealing surface for scoring, corrosion, or debris, and clean the bore and shaft area before pressing the seal into place. For best results, install on a smooth, undamaged surface and confirm the seal seats evenly.

Quality Assurance

SKF has a long history in seal design and manufacturing, with a focus on precise construction and material selection for demanding automotive environments. Part number 18990 is produced to support consistent sealing performance in the specified rear axle applications.