Interstate-McBee M-4947667 Rear Cover (Rear Main Seal Cover) Gasket – 1989–2002 5.9L Cummins

OEM-style rear cover / rear main seal cover gasket engineered by Interstate-McBee for the 1989–2002 Dodge Ram 2500/3500 5.9L Cummins (12V & 24V). Designed to restore a reliable seal at the rear main seal housing to block interface, helping prevent oil leaks and ensuring long-term durability at an aftermarket price point.

• Direct replacement: Matches Cummins 4947667 form, fit, and function.
• Quality materials: Precision-cut gasket material for consistent sealing and service life.
• Aftermarket value: Interstate-McBee build quality at a fraction of OEM cost.
• Easy install: Designed for straightforward service when replacing the rear main seal or housing.

Specifications

What’s Included

• (1) Rear cover / rear main seal housing gasket

Vehicle Fitment

Always verify with engine serial number (ESN) for exact compatibility.

• Dodge Ram 2500/3500 – 5.9L Cummins
  • 1989–1998 12-Valve 6BT
  • 1998.5–2002 24-Valve ISB

Install Notes

• Clean all mating surfaces; remove old gasket material and residue.
• Inspect rear main seal housing; replace seal or sleeve if worn or leaking.
• Follow Cummins service manual for housing torque pattern and specs.
• Use sealant only where the service manual specifies (typically at joint seams).

Warranty

Interstate-McBee new engine parts generally carry manufacturer coverage (commonly up to 24 months for new engine parts; valve train components may differ). Contact us for policy details specific to this gasket.

Cross-Reference

Direct replacement for Cummins 4947667. Fits designated B-Series 5.9L applications as listed above.

Why Buy From CPP Diesel

• Diesel experts with ESN-verified fitment support.
• Fast shipping and easy returns.
• Curated B-Series parts to complete your rear main service (seal, sleeve, tools).

FAQ