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ATP Parts 103073 Engine Timing Cover

Brand	ATP Parts 103073
Fits	Chevrolet, GMC, Oldsmobile, and Isuzu · 157 vehicles

OE-style fit and function. Installs like the original timing cover for a proper seal.

Protects the timing chain. Helps maintain lubrication and guard against damage.

Engineered for long life and durability.

Cross-references Pioneer Automotive Industries 500262, 308434 and 635502 for the same application. See all 7.

$82.23Free shipping

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Engine Timing Cover for GM 4.3L Applications

ATP Parts 103073 is an engine timing cover for select Chevrolet, GMC, Oldsmobile, and Isuzu applications. It helps seal and protect the timing chain area while supporting proper lubrication, which is critical for long-term engine protection.

Built as a direct replacement for the original cover, ATP Parts 103073 is a practical choice for drivers servicing a leaking, corroded, or damaged timing cover on GM trucks, vans, and SUVs.

Key Features

Engine timing cover for select GM and Isuzu vehicles
Plastic construction on listed applications with crankshaft sensor hole
Helps retain engine oil around the timing chain area
Direct replacement design for OE-style fit and function
Cross-references Pioneer Automotive Industries 500262 for the same application
Part number 103073 for easy ordering and verification

Application Details

Compatible with a wide range of 1995-2008 Chevrolet and GMC models, including Silverado 1500, Sierra 1500, S10, Sonoma, Blazer, Jimmy, Astro, Safari, Express 1500, Express 2500, Savana 1500, Savana 2500, C1500, K1500, P30, and G30. Also used on 1996-2001 Oldsmobile Bravada and 1997-2000 Isuzu Hombre. Fitment notes vary by application, including plastic construction and crankshaft sensor hole requirements.

ATP timing covers are made to match the original part’s fit and function, helping maintain proper sealing around the timing chain area. If you are replacing a worn timing cover on a Chevrolet Silverado 1500, GMC Sierra 1500, or Chevrolet S10, confirm the engine configuration and sensor-hole requirement before installation.

Common Problems This Part Can Address

Engine oil leaks from a cracked or warped timing cover
Corrosion-related damage to the front engine cover
Timing chain area contamination from poor sealing
Noise or wear concerns caused by oil loss in the timing assembly
Replacement needs after over-tightening or physical damage

Installation Notes and Tips

Verify the vehicle year, make, model, and the crankshaft sensor hole requirement before ordering. Clean the mating surfaces thoroughly and inspect the timing chain area, seals, and related components before reassembly. Because fitment varies across Chevrolet, GMC, Oldsmobile, and Isuzu applications, compare the original cover to ATP Parts 103073 before installation.

Quality Assurance

ATP Parts positions this timing cover as an OE-style replacement built for proper fit, function, and durability. The design is intended to restore the sealing and protection needed for the timing chain area on the listed applications.

This part fits 157 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
2008	Chevrolet	Silverado 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2007	Chevrolet	Express 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2007	Chevrolet	Silverado 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2007	Chevrolet	Silverado 1500 Classic	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2007	GMC	Savana 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2007	GMC	Sierra 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2007	GMC	Sierra 1500 Classic	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2006	Chevrolet	Express 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2006	Chevrolet	Silverado 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2006	GMC	Savana 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2006	GMC	Sierra 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	Chevrolet	Astro	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	Chevrolet	Blazer	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	Chevrolet	Express 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	Chevrolet	Express 2500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	Chevrolet	Silverado 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	GMC	Jimmy	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	GMC	Safari	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	GMC	Savana 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	GMC	Savana 2500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2005	GMC	Sierra 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	Chevrolet	Astro	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	Chevrolet	Blazer	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	Chevrolet	Express 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	Chevrolet	Express 2500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	Chevrolet	S10	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	Chevrolet	Silverado 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	GMC	Safari	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	GMC	Savana 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	GMC	Savana 2500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	GMC	Sierra 1500	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2004	GMC	Sonoma	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
2003	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	Chevrolet	Silverado 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	GMC	Sierra 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2003	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	Chevrolet	Silverado 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	GMC	Sierra 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2002	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	Chevrolet	Silverado 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	GMC	Sierra 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2001	Oldsmobile	Bravada	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Chevrolet	Silverado 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	GMC	Sierra 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Isuzu	Hombre	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
2000	Oldsmobile	Bravada	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Chevrolet	P30	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Chevrolet	Silverado 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	GMC	P3500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	GMC	Sierra 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Isuzu	Hombre	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1999	Oldsmobile	Bravada	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	C1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	K1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	P30	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	C1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	K1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	P3500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Isuzu	Hombre	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1998	Oldsmobile	Bravada	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	C1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	K1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	P30	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	C1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	K1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	P3500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Isuzu	Hombre	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1997	Oldsmobile	Bravada	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	Astro	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	C1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	Express 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	Express 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	G30	4.3L	V6	N/A	Plastic, w/Crankshaft Sensor Hole
1996	Chevrolet	K1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	P30	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	C1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	K1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	P3500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	Safari	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	Savana 1500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	Savana 2500	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1996	Oldsmobile	Bravada	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1995	Chevrolet	Blazer	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1995	Chevrolet	S10	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1995	GMC	Jimmy	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
1995	GMC	Sonoma	4.3L	V6	N/A	Engine Timing Cover with Crankshaft Sensor Hole and made of Plastic
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Directly replaces or cross-references 7 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Pioneer Automotive Industries — 50026230843463550226700091255455589017259TW6509