Cummins Complete Upper+Lower Full Gasket Set For Dodge 5.9L 12 Valve 6B 6BT 6BTA
The complete gasket set for the Cummins 6BTA 5.9 (12-valve, 1989-1998 models) engine includes upper and lower cylinder block components, such as 0.067-inch or 0.061-inch MLX cylinder head gaskets, valve cover gaskets, exhaust manifold gaskets, and front and rear crankshaft oil seals. Key components include high-temperature materials for turbocharged applications and various O-rings for the oil/fuel system.
Description
Key Parameters and Components
Cylinder Head Gasket Thickness/Type: Typically 0.067 inches (1.7 mm) or 0.061 inches MLX (multi-layer steel).
Cylinder Head Gasket Bore Diameter: 4.100 inches.
Valve Cover Gasket: Freestanding or integrated rubber seal.
Exhaust Manifold: Six-piece or integrated manifold gasket.
Seal Type: Oil cooler, injectors, and intake manifold use fluororubber or high-temperature resistant rubber.
Coverage: Includes all gaskets from the cylinder head to the oil pan, including the water pump and timing cover.
Common Part Numbers/Kits
Complete Kits: 4089649, 3802026, 3802363.
Cylinder Head Gasket Specific: C5955-067 (0.067″ MLX).
Timing Cover Kit: 28670 (94-98).
Important Notes
Engine Year: Ensure the kit is compatible with 12-valve (1989-1998) engines, as 24-valve kits differ.
Application: Specify whether it is for automotive (e.g., Dodge Ram) or marine (e.g., 6BTA) applications to select the appropriate sealing components.
Material: Choose multi-layer steel (MLS/MLX) cylinder head gaskets for improved durability under boost pressure.


















