SKF 11690 Automatic Transmission Output Shaft Seal

SKF 11690 Automatic Transmission Output Shaft Seal

The SKF 11690 automatic transmission output shaft seal is built for precise sealing at the transmission output shaft, helping retain fluid where it belongs and keep road contaminants out. It is a direct-fit style seal for select Buick Riviera, Cadillac Eldorado, and Cadillac Seville applications with THM325 transmission configurations.

With a 1.181 shaft diameter, 2.290 outside diameter, and 0.315 width, this SKF transmission seal is specified for a controlled fit in the sealing bore. The polyacrylate sealing surface type is selected for transmission sealing environments where heat, fluid exposure, and shaft movement all matter.

Key Features

• Automatic transmission output shaft seal for transmission sealing service
• SKF part number 11690
• 1.181 shaft diameter for the specified application
• 2.290 outside diameter for proper housing fit
• 0.315 width for compact sealing depth
• Polyacrylate sealing surface type
• Compatible with select THM325 transmission applications

Fitment Details

• Fits 1979-1985 Buick Riviera, N/A, w/ Final Drive Assy.
• Fits 1979-1985 Cadillac Eldorado, N/A, THM325 Trans.
• Fits 1980-1985 Cadillac Seville, N/A, THM325 Trans.

What This Seal Helps Address

• Transmission fluid leakage at the output shaft area
• Contamination entering the transmission through a worn seal
• Fluid loss that can affect transmission operation
• Seal wear from age, heat, and normal driveline movement
• Service replacement needs on Buick Riviera, Cadillac Eldorado, and Cadillac Seville applications

Installation Notes

Verify shaft diameter, outside diameter, and transmission application before installation. Clean the sealing bore and shaft surface thoroughly, and inspect for grooves, corrosion, or damage that could affect sealing performance. Confirm the vehicle uses the listed THM325 transmission or final drive configuration before ordering SKF 11690.

Quality Assurance

SKF has a long history in seal engineering and manufacturing, with designs developed for specific applications and environments. The brand’s sealing products are produced to high quality standards using materials selected for the demands of automotive transmission service. This part cross-references 1614578 for the same application.