Dorman 635-512 Engine Timing Cover

Direct Replacement Timing Cover for GM V8 Applications

Dorman 635-512 is a direct replacement engine timing cover built to match the original equipment cover’s fit and function. It is made from steel with a silver finish and includes the timing cover, gasket, and seal for a reliable repair on select Chevrolet, GMC, and Oldsmobile applications.

Compatible With 1987-1993 Chevrolet Astro, 1988-1993 Chevrolet C1500, and 1991-1992 GMC Sonoma applications with a welded pointer. This timing cover is also used across additional Chevrolet and GMC truck, van, and SUV platforms from the 1987-1994 model years.

• Direct replacement for the original timing cover
• Steel construction with a silver finish
• Includes gasket and seal
• Mounting hardware included
• Designed for select vehicles with a welded pointer
• Dorman 635-512 for engine timing cover repair

Fitment and Application Details

This part cross-references ATP 103122 for the same application.

• Fits 1990-1994 Chevrolet P30, w/Welded Pointer
• Fits 1990-1994 GMC P3500, w/Welded Pointer
• Fits 1987-1993 Chevrolet Astro, w/Welded Pointer
• Fits 1988-1993 Chevrolet C1500, w/Welded Pointer
• Fits 1988-1993 Chevrolet C2500, w/Welded Pointer
• Fits 1992-1993 Chevrolet Caprice, w/Welded Pointer
• Fits 1988-1993 Chevrolet K1500, w/Welded Pointer
• Fits 1988-1993 Chevrolet K2500, w/Welded Pointer
• Fits 1988-1993 GMC C1500, w/Welded Pointer
• Fits 1988-1993 GMC C2500, w/Welded Pointer
• Fits 1988-1993 GMC K1500, w/Welded Pointer
• Fits 1988-1993 GMC K2500, w/Welded Pointer
• Fits 1987-1993 GMC Safari, w/Welded Pointer
• Fits 1988-1992 Chevrolet S10, w/Welded Pointer
• Fits 1988-1992 Chevrolet S10 Blazer, w/Welded Pointer
• Fits 1992 GMC Jimmy, w/Welded Pointer
• Fits 1991-1992 GMC Sonoma, w/Welded Pointer
• Fits 1991-1992 Oldsmobile Bravada, w/Welded Pointer
• Fits 1988-1991 GMC S15 Jimmy, w/Welded Pointer
• Fits 1988-1990 GMC S15, w/Welded Pointer

What This Part Helps Repair

• Oil seepage or leakage at the front of the engine
• Damaged or corroded timing cover surfaces
• Seal failure around the timing cover area
• Fitment issues caused by a worn original cover
• Service needs on Chevrolet and GMC V8 timing cover applications

Installation Notes and Tips

Verify engine configuration and the welded pointer note before installation. Clean the mating surfaces thoroughly, inspect the timing set area, and replace worn seals or gaskets during service. Confirm alignment before tightening fasteners to help prevent leaks and ensure proper cover seating.

Quality Assurance

Dorman states this timing cover has been extensively tested to meet precise design standards for fit and function. The Dorman 635-512 is engineered as a direct replacement for select Chevrolet, GMC, and Oldsmobile applications.