Product Description
Interstate-McBee M-4947667 Rear Gear Housing Cover Gasket – 1989–2002 5.9L Cummins B-Series
Direct-fit rear gear housing cover gasket for the 5.9L Cummins B-Series (Dodge Ram 2500/3500, 1989–2002). Built to OE form and thickness for reliable sealing during service or engine reseal. Sold individually.
- OE-equivalent seal: Helps prevent oil leaks at the rear gear housing cover.
- Correct fitment: Matches Cummins reference 4947667 for B-Series applications.
- Service-friendly: Ideal for timing gear housing reseal, rear cover service, or engine refresh.
- Value: Interstate-McBee quality at a cost-effective price point.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-4947667 |
| OEM Reference | Cummins 4947667 |
| Location | Rear gear housing cover (engine front gear case, rear cover interface) |
| Sold As | Each (1 gasket) |
What’s Included
- (1) Rear gear housing cover gasket, P/N M-4947667
Vehicle Fitment
Always verify with your engine serial number (ESN) when possible.
- Dodge Ram 2500/3500 with 5.9L Cummins B-Series
- Model Years: 1989–2002
- Engine Families: 12-Valve (1989–1998) and 24-Valve (1998.5–2002)
- Additional 5.9L B-Series industrial/ag applications where Cummins 4947667 is specified (confirm by ESN).
Install Notes
- Clean and dry both sealing surfaces; remove old gasket material without gouging aluminum surfaces.
- Dry-fit to confirm alignment; install fasteners hand-tight first, then torque in a cross-pattern per the Cummins service manual.
- Avoid excess sealant; use only where specified by the manual.
Why Buy From CPP Diesel
- ESN-verified fitment support from diesel specialists
- Fast shipping, easy returns, competitive pricing
- Deep inventory of complementary B-Series gaskets and engine hardware
FAQ
Will this gasket fit my 1994, 1998, or 2001 5.9L Cummins?
Yes. This listing covers 5.9L B-Series engines in 1989–2002 Dodge Ram 2500/3500 trucks. For edge cases, verify by ESN.
Do I need sealant with this gasket?
Only where specified by the Cummins service manual. Many joints are designed to be installed dry on clean, flat surfaces.
Is this the same as the front cover gasket?
No. This is the rear gear housing cover gasket. The front cover/timing cover gasket is a different part.
How can I be sure this is the correct part?
Match the OEM reference 4947667 and verify with your engine serial number (ESN) for absolute confirmation.
