SKF 13949 Manual Transmission Output Shaft Seal - Rear Inner or Right

SKF 13949 Manual Transmission Output Shaft Seal

SKF 13949 is a manual transmission output shaft seal built for the right-side application on select Pontiac compact cars. It is specified with a 1.378 shaft diameter, 2.054 outside diameter, and 0.315 width, with a nitrile sealing surface for transmission sealing performance.

Fits 1989-1991 Pontiac Firefly, right. Fits 1989-1991 Pontiac Optima, right. This part cross-references AW25409 and GHS186 for the same application.

Key Features

• Manual transmission output shaft seal for transmission sealing service
• 1.378 shaft diameter for the specified shaft fit
• 2.054 outside diameter for housing fitment
• 0.315 width for the listed seal profile
• Nitrile sealing surface type
• Fits 1989-1991 Pontiac Firefly, right
• Fits 1989-1991 Pontiac Optima, right
• SKF part number 13949

Detailed Description

SKF 13949 is a transmission seal engineered for the manual transmission output shaft location, where it helps maintain lubricant retention at the shaft exit point. The listed dimensions and nitrile sealing surface support a precise service replacement for the right-side application on 1989-1991 Pontiac Firefly and 1989-1991 Pontiac Optima. SKF has a long history in seal design and manufacturing, with products built to specific application requirements and material standards for durability in demanding operating environments.

What It Helps Address

• Transmission fluid seepage at the output shaft area
• Contamination entering the transmission through a worn seal
• Leak-related low lubricant level concerns
• Seal wear from age, heat, and normal drivetrain use
• Service replacement for a damaged manual transmission output shaft seal

Installation Notes and Tips

Verify the shaft diameter, outside diameter, and width against the original seal before installation. Inspect the shaft surface and seal bore for wear, scoring, or corrosion, and clean the sealing area thoroughly before fitting the new seal. Confirm right-side placement on the transmission and match the application to the vehicle year and model before assembly.

Quality Assurance

SKF manufactures seals to application-specific designs using premium materials and established production standards. The brand’s seal engineering background and long-running OE-focused sealing expertise support consistent fit and service life for transmission sealing applications.