ATP Parts 103359 Engine Timing Cover

Engine Timing Cover for GM LS Applications

ATP Parts 103359 is an aluminum engine timing cover for select GM vehicles with sensor provisions. It helps protect the timing chain area while supporting proper lubrication, which is critical for long-term engine reliability. This timing cover is a direct-fit replacement for many Chevrolet, GMC, Cadillac, Hummer, and Pontiac LS-based applications.

Key Features

• Aluminum construction for strength and corrosion resistance
• With sensor provision for listed applications
• Direct replacement timing cover for OE-style fit and function
• Helps contain engine oil and protect the timing chain area
• Cross-references Pioneer Automotive Industries 500LS1B and OE-style part 12600326

Detailed Description

Built for LS-platform engines, ATP Parts 103359 timing cover is made to match the original part’s fit and function. It is used on vehicles such as the 2005-2006 Chevrolet SSR, 2005-2006 Pontiac GTO, 2006-2009 Chevrolet Silverado 1500, and 2007-2009 GMC Sierra 1500. This part number is also listed for 2010-2012 Chevrolet Camaro and 2005-2012 Chevrolet Corvette applications with sensor and aluminum construction requirements. If you are replacing a damaged or leaking front engine cover, ATP 103359 provides the correct style for many GM truck, SUV, and performance models.

What It Helps Fix

• Oil leaks from a cracked or warped timing cover
• Corrosion damage around the front of the engine
• Timing chain area exposure from a failed cover
• Seal issues caused by over-tightening or age-related wear
• Front engine oil loss that can lead to internal damage

Installation Notes and Tips

Verify sensor-equipped fitment before ordering, since this cover is listed only for applications with sensor provisions. Confirm engine configuration and OE part match against your vehicle before installation. Clean the sealing surfaces thoroughly and inspect related seals and gaskets during service to help prevent repeat leaks. Fits 2005-2006 Chevrolet SSR, N/A; Fits 2005-2006 Pontiac GTO, N/A; Fits 2006-2009 Chevrolet Silverado 1500, N/A; Fits 2007-2009 GMC Sierra 1500, N/A; Fits 2010-2012 Chevrolet Camaro, N/A.

Quality Assurance

ATP Parts 103359 is engineered as an OE-style replacement timing cover for proper fit and durability in listed GM applications. The aluminum design supports long service life in demanding engine environments.