Interstate-McBee M-3930906 Valve Cover Gasket – 89–98 5.9L Cummins (12-Valve)

Premium aftermarket valve cover gasket from Interstate-McBee for 1989–1998 Dodge Ram 2500/3500 trucks equipped with the 5.9L Cummins 12-valve (6BT). Direct-fit replacement that restores a proper seal and helps stop oil seepage. Sold individually; order 6 gaskets to reseal all covers.

• Direct-fit replacement: OEM-style dimensions for a reliable seal.
• Aftermarket value: Interstate-McBee quality at a lower cost than OEM.
• Service-friendly: Sold per cover so you can replace one or all six.

Specifications

Vehicle Fitment

Always confirm with your engine serial number (ESN) for edge-case builds.

• Dodge Ram 2500/3500 with 5.9L Cummins 12-Valve (6BT)
  • Model Years: 1989–1998
• Also commonly used on Cummins 4BT 3.9L and other B-Series applications (verify by ESN/application).

Install Notes

• Clean mating surfaces thoroughly; remove all old gasket material and oil residue.
• Inspect cover straightness; replace bent/damaged covers before sealing.
• Torque fasteners per the Cummins service manual and follow recommended patterns.

Warranty

Interstate-McBee new parts include manufacturer warranty coverage. Contact us for assistance with coverage details for gasket components.

Why Buy From CPP Diesel

• Diesel experts with ESN-verified fitment support.
• Fast shipping and hassle-free returns.
• Stocked B-Series essentials to finish the job right.

FAQ