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The Dorman 904-380 Rocker Box and Valve Cover Gasket Kit is engineered to restore factory function to your vehicle by replacing damaged or failed original parts. With its high-quality materials and try-on testing, this kit ensures proper fitment and extended service life. Designed for a direct fit, it makes installation straightforward, maintaining factory-like fit and function for various Chevrolet and GMC models.
Key Features:
- Restores original factory function to the engine
- Made from high-quality materials for durability
- Try-on tested to guarantee fitment and longevity
- Suitable for a wide range of Chevrolet and GMC models from 2010 to 2017

The Dorman 904-380 Rocker Box and Valve Cover Gasket Kit is engineered to restore factory function to your vehicle by replacing damaged or failed original parts. With its high-quality materials and try-on testing, this kit ensures proper fitment and extended service life. Designed for a direct fit, it makes installation straightforward, maintaining factory-like fit and function for various Chevrolet and GMC models.
Key Features:
- Restores original factory function to the engine
- Made from high-quality materials for durability
- Try-on tested to guarantee fitment and longevity
- Suitable for a wide range of Chevrolet and GMC models from 2010 to 2017