Product Description
Interstate-McBee M-3927154 Exhaust Manifold Gasket – 89–98 5.9L Cummins 12-Valve
Direct-fit exhaust manifold gasket for the 1989–1998 Dodge Ram 2500/3500 with the 5.9L Cummins 12-valve (6BT). Built to OE form and fit to seal the manifold to the cylinder head and help prevent exhaust leaks. Sold individually.
- OE-equivalent fit: Matches the factory gasket profile for 12-valve B-series heads.
- Reliable seal: Helps restore proper backpressure and turbo spool by eliminating leaks.
- Service-friendly: Pair with new manifold hardware and spacers during replacement.
- Great value: Interstate-McBee quality at an affordable price.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-3927154 |
| OEM Reference | Cummins 3927154 |
| Position | Exhaust manifold to cylinder head |
| Sold As | Each (1 gasket) |
| Qty Required (12V) | 6 gaskets (one per exhaust port) |
What’s Included
- (1) Exhaust manifold gasket, P/N M-3927154
Vehicle Fitment
Always verify by engine serial number (ESN) when possible.
- Dodge Ram 2500/3500 5.9L Cummins (12-valve 6BT)
- Model Years: 1989–1998
- Additional Cummins B-Series applications where 3927154 is specified (confirm by ESN).
Recommended/Related Parts
- Exhaust manifold hardware kit (studs, nuts, spacers)
- Exhaust manifold to turbo gasket
- Exhaust manifold (stock or performance upgrade)
- Penetrating oil / anti-seize for fasteners
Install Notes
- Let the engine cool completely before disassembly.
- Soak manifold fasteners with penetrating oil to reduce the chance of breakage.
- Clean mating surfaces and check manifold for warpage or cracks; replace hardware as needed.
- Tighten fasteners in the factory sequence and torque to spec per the Cummins service manual.
FAQ
How many gaskets do I need?
The 12-valve 5.9L uses six individual exhaust port gaskets—order 6 per engine.
Does this fit 24-valve (1998.5–2002) engines?
No. This listing is for 12-valve engines (1989–1998). Verify by ESN if unsure.
Should I replace hardware?
It’s recommended to replace studs/nuts and use anti-seize on reassembly to ease future service.
