SKF 3683 Automatic Transmission Shift Shaft Seal

SKF 3683 Automatic Transmission Shift Shaft Seal

SKF 3683 is an automatic transmission shift shaft seal built for the transmission sealing system. It uses a nitrile sealing surface and precise dimensions to help maintain a tight seal at the shift shaft, where fluid retention and contamination control are critical.

Key Features

• Part number 3683 automatic transmission shift shaft seal
• Nitrile sealing surface for transmission sealing applications
• Width: 0.250 in.
• Outside diameter: 0.753 in.
• Shaft diameter: 0.375 in.
• Designed by SKF, a long-established seal manufacturer

Detailed Description

SKF 3683 is engineered for automatic transmission shift shaft sealing in vehicles such as the 1980-1983 Pontiac Phoenix, 1982-1983 Chevrolet Cavalier, and 1982-1983 Buick Century. It is also listed for 1982-1983 Cadillac Cimarron, Chevrolet Celebrity, Chevrolet Citation, Oldsmobile Cutlass Ciera, Oldsmobile Firenza, Oldsmobile Omega, Pontiac 6000, and Pontiac J2000. The seal dimensions and nitrile sealing surface are selected to support proper fit at the shaft interface and help maintain transmission fluid control.

SKF has a long history in seal design and manufacturing, including early integrated shaft seal development and continued refinement of bonding and material selection. This part cross-references CSF 10496 for the same application.

What It Helps Address

• Transmission fluid seepage at the shift shaft
• Contamination entering the transmission through a worn shaft seal
• Leak-related fluid loss around the shift linkage area
• Seal wear from age, heat, and transmission fluid exposure
• Service replacement for a damaged automatic transmission shift shaft seal

Installation Notes and Tips

Confirm shaft diameter, outside diameter, and seal width before installation. Inspect the shift shaft and surrounding bore for wear, scoring, or debris that could affect sealing performance. Clean the sealing surfaces thoroughly and install the seal squarely to avoid distortion. Verify vehicle application by year, make, and model before ordering.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and controlled production standards for long service life and dependable sealing performance.