HomeEngine > Gaskets and Sealing SystemsDorman 615-203 Engine Valve Cover Gasket - Left or Right
Part #: 615-203

Dorman 615-203 Engine Valve Cover Gasket - Left or Right

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32 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, and Sierra 3500
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Reliable Engine Valve Cover Gasket for Chevrolet and GMC Trucks

The Dorman 615-203 engine valve cover gasket is designed to provide a durable seal for Chevrolet and GMC heavy-duty trucks. Engineered with silicone material, this one-piece gasket ensures a precise fit and reliable performance for models like the Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500.

  • Constructed from high-quality silicone for enhanced durability and heat resistance
  • One-piece configuration simplifies installation and ensures a consistent seal
  • Thickness of 9.8 mm for optimal sealing performance
  • Includes 1 valve cover gasket, 8 injector cup o-rings, and 4 valve cover bolts for a complete replacement
  • Standard grade type suitable for regular engine operating conditions

Durable Silicone Material and Complete Package Contents

The Dorman 615-203 valve cover gasket is made from silicone, a material known for its flexibility and resistance to high temperatures and oil degradation. This gasket’s 9.8 mm thickness provides a secure seal to prevent oil leaks and maintain engine integrity. The one-piece design reduces the risk of improper installation and ensures consistent sealing across the valve cover surface. Additionally, the package includes injector cup o-rings and valve cover bolts, providing all necessary components for a comprehensive valve cover gasket replacement on Chevrolet and GMC trucks.

Compatible Vehicles and Applications

This engine valve cover gasket is compatible with Chevrolet and GMC heavy-duty trucks, specifically the Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models. It is designed to meet the sealing requirements of these vehicles’ engines, helping to maintain proper engine performance and prevent oil leaks.

  • Prevents oil leaks from the valve cover area
  • Maintains engine cleanliness by sealing the valve cover
  • Reduces risk of engine damage caused by oil loss
  • Ensures proper injector cup sealing with included o-rings
  • Replaces worn or damaged valve cover bolts to secure the cover

Installation Notes and Tips

Before installation, clean the valve cover and surrounding surfaces thoroughly to remove old gasket material and oil residue. Ensure the new gasket is properly seated in the valve cover groove. Use the included valve cover bolts to secure the cover evenly, tightening to manufacturer torque specifications to avoid warping or leaks. Replacing the injector cup o-rings during installation helps maintain injector sealing and engine performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 615-203 valve cover gasket undergoes quality checks to ensure durability and reliable sealing performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship to provide confidence in the product’s longevity.

BrandDorman
Part Number615-203
ConfigurationOne Piece
Grade TypeStandard
MaterialSilicone
Package Contents1 Valve Cover Gasket; 8 Injector Cup O-rings; 4 Valve Cover Bolts; 7 Assorted Fuel Line Gaskets; 4 Injector Seal O-rings; and 1 Coolant Outlet O-ring
Thickness9.8

This part fits 32 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004ChevroletSilverado 2500 HD6.6LV8LeftValve Cover Kit
2004ChevroletSilverado 2500 HD6.6LV8RightValve Cover Kit
2004ChevroletSilverado 35006.6LV8LeftValve Cover Kit
2004ChevroletSilverado 35006.6LV8RightValve Cover Kit
2004GMCSierra 2500 HD6.6LV8LeftValve Cover Kit
2004GMCSierra 2500 HD6.6LV8RightValve Cover Kit
2004GMCSierra 35006.6LV8LeftValve Cover Kit
2004GMCSierra 35006.6LV8RightValve Cover Kit
2003ChevroletSilverado 2500 HD6.6LV8LeftValve Cover Kit
2003ChevroletSilverado 2500 HD6.6LV8RightValve Cover Kit
2003ChevroletSilverado 35006.6LV8LeftValve Cover Kit
2003ChevroletSilverado 35006.6LV8RightValve Cover Kit
2003GMCSierra 2500 HD6.6LV8LeftValve Cover Kit
2003GMCSierra 2500 HD6.6LV8RightValve Cover Kit
2003GMCSierra 35006.6LV8LeftValve Cover Kit
2003GMCSierra 35006.6LV8RightValve Cover Kit
2002ChevroletSilverado 2500 HD6.6LV8LeftValve Cover Kit
2002ChevroletSilverado 2500 HD6.6LV8RightValve Cover Kit
2002ChevroletSilverado 35006.6LV8LeftValve Cover Kit
2002ChevroletSilverado 35006.6LV8RightValve Cover Kit
2002GMCSierra 2500 HD6.6LV8LeftValve Cover Kit
2002GMCSierra 2500 HD6.6LV8RightValve Cover Kit
2002GMCSierra 35006.6LV8LeftValve Cover Kit
2002GMCSierra 35006.6LV8RightValve Cover Kit
2001ChevroletSilverado 2500 HD6.6LV8LeftValve Cover Kit
2001ChevroletSilverado 2500 HD6.6LV8RightValve Cover Kit
2001ChevroletSilverado 35006.6LV8LeftValve Cover Kit
2001ChevroletSilverado 35006.6LV8RightValve Cover Kit
2001GMCSierra 2500 HD6.6LV8LeftValve Cover Kit
2001GMCSierra 2500 HD6.6LV8RightValve Cover Kit
2001GMCSierra 35006.6LV8LeftValve Cover Kit
2001GMCSierra 35006.6LV8RightValve Cover Kit

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

This part directly replaces or is cross-referenced with the following part numbers:

217-336094007884

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