National 6936S Engine Camshaft Seal

Engine camshaft seal details

The National 6936S engine camshaft seal is a nitrile oil seal built for sealing applications that require a precise shaft fit. It is sized for the listed housing bore and shaft dimensions and is compatible with select Chevrolet Chevette, Pontiac Acadian, and Pontiac T1000 applications.

• Fits 1976-1987 Chevrolet Chevette, N/A.
• Fits 1976-1987 Pontiac Acadian, N/A.
• Fits 1981-1987 Pontiac T1000, N/A.

Key features

• Nitrile construction for sealing performance in engine applications.
• Oil seal design with a 1.763-inch shaft diameter and 2.416-inch outside diameter.
• 0.375-inch thickness for a direct dimensional match to the specified application.
• National 6000 Series part, engineered for sealing systems use.
• Part number 6936S for accurate ordering and catalog lookup.

Product application

This camshaft seal helps maintain a tight seal at the camshaft interface to reduce oil leakage and keep engine oil where it belongs. It is a fitment-based replacement for Chevrolet Chevette, Pontiac Acadian, and Pontiac T1000 models listed in the application data, and the 6936S part number should be matched carefully to the vehicle’s sealing requirements.

Common issues this part addresses

• Oil seepage around the camshaft seal area.
• Loss of sealing integrity from worn or hardened rubber.
• Incorrect seal dimensions during engine service.
• Replacement needs during timing or front engine sealing work.

Installation notes and quality

Verify shaft, housing bore, and thickness measurements before installation to confirm the seal matches the engine specification. Clean the sealing surfaces thoroughly and inspect the shaft for wear or scoring before fitting the new seal. National has supplied premium sealing solutions for more than 75 years, and the 6936S reflects that sealing-focused product line.