This aftermarket camshaft bushing replaces Cummins reference part number 3901306 and is designed for select Cummins 4B, 4BT, 6B, and 6BT B-Series diesel engines, including common 3.9L and 5.9L applications. The bushing installs in the engine block to support the camshaft and help maintain proper camshaft alignment and oil clearance. It may be used during an engine rebuild or when replacing a worn camshaft bushing. The package includes one camshaft bushing. Cummins B-Series engines may use different components depending on the engine serial number, CPL, and application. Please match your original part number to 3901306 and consult the appropriate engine service manual before installation. Professional installation is recommended.
REPLACES PART NUMBER – Aftermarket camshaft bushing replaces Cummins reference part number 3901306; verify the number on your original part before ordering.
ENGINE COMPATIBILITY – Fits select Cummins 4B, 4BT, 6B and 6BT diesel engines, including common 3.9L and 5.9L applications; 1989-1997 Dodge
CAMSHAFT SUPPORT – Installs in the engine block to support the camshaft and help maintain proper alignment and oil clearance.
QUANTITY INCLUDED – Package includes one camshaft bushing. Confirm the quantity required for your engine before ordering.
VERIFY FITMENT – Cummins B-Series engines may use different components depending on the engine serial number, CPL and application. Match your original part number to 3901306 before purchase.




































