Seal and protect the timing chain and gears at the front of the engine with the Dorman - OE Solutions Engine Timing Cover 635-511. It installs as a direct-fit replacement for a wide range of classic Chevrolet and GMC cars, trucks, and vans, including the 1966-1975 Chevrolet Bel Air, 1966-1972 Chevrolet Biscayne, 1966-1976 Chevrolet Caprice, 1966-1974 Chevrolet Corvette, and 1966-1976 Chevrolet Impala — see the Buyer's Guide tab for the full list of 126 applications.
Encloses the timing drive: Covers the front of the engine over the timing chain and gears, shielding them from road debris and contaminants.
Helps retain engine oil: Closes off the front of the engine to help keep oil contained at the timing area.
Front sealing surface: Provides a sealing surface at the front of the engine that works with the timing cover gasket.
Signs this part may need replacing include oil seepage at the front of the engine or a cracked, corroded, or damaged original cover. If a failed timing cover is the cause of a front-end oil leak, this replaces it; diagnose the source of the leak before ordering.
Interchange: 103121 · 330850 · 3885048 · 3937731 · 500454S. Manufacturer part number 635-511 (also 635511).
This part cross-references / interchanges with the following part numbers:
103121, 330850, 3885048, 3937731, 500454S
Frequently Asked Questions
What does this timing cover do?
It encloses the front of the engine over the timing chain and gears, protects them from debris, and helps keep engine oil contained at the timing area.
Which vehicles does the 635-511 fit?
It's a direct-fit replacement for 126 classic Chevrolet and GMC applications, including the 1966-1975 Chevrolet Bel Air and 1966-1976 Chevrolet Impala. See the Buyer's Guide tab for the full list.
What are signs I may need to replace the timing cover?
Oil seepage at the front of the engine or a cracked, corroded, or damaged original cover. Diagnose the source of any leak before ordering, since other components can cause similar symptoms.
Does it include a gasket or seal?
This listing is for the timing cover. It doesn't list an included gasket or seal, so consult the vehicle service information for the correct sealing components and fasteners.
What is the part number and what does it interchange with?
Manufacturer part number 635-511. It interchanges with 103121, 330850, 3885048, 3937731, and 500454S.
Engine Timing CoverThis direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure...
Engine Timing CoverThis direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure...
Engine Timing CoverThis direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
