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Cummins 3963379 Rocker Box Gasket - 2003-2018 Dodge 5.9L/6.7L Cummins

Thoroughbred Sku #: CUM3963379
Manufacturer Sku #: 3963379

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Product Details

Product Name: Cummins 3963379 Rocker Box Gasket - 2003-2018 Dodge 5.9L/6.7L Cummins
Manufacturer: Cummins
Manufacturer Part #: 3963379
Thoroughbred Diesel Part #: CUM3963379
Fitment Notes: 2003-2018 Dodge 5.9L/6.7L Cummins

Keep your 2003-2018 Dodge 5.9L/6.7L Cummins performing as the factory intended with the Cummins 3963379 Rocker Box Gasket. This Cummins product is an OEM replacement and when used, allows your engine to maintain factory standards. Every Cummins component is constructed from quality materials for durability and reliable performance.

Cummins 3963379 Rocker Box Gasket Features:

  • Direct-Fit Replacement
  • Constructed From High Quality Materials
  • Maintains Factory Fit & Performance
  • For more information on Cummins call us at 1-859-737-4966

Reviews

  • Rocker box gasket vs valve cover gasket. I understand with my 2004.5 Cummins that I have 2 sections that make up the valve cover. Why doesn't anyone sell them as a set. Is the rocker box gasket the one that contacts the head and valve cover the one that is in the middle?

    Matthew | 2/9/2025

    Rocker box gasket contacts the cylinder head. Valve cover gasket contacts the rocker box.