Product Description
The Cummins 3946275 OEM Exhaust Manifold Gasket delivers the long-lasting seal your 5.9L Cummins needs to maintain proper exhaust flow and prevent leaks. This genuine Cummins component is engineered for exact fitment on 1998.5–2007 Dodge Ram trucks and is constructed with high-quality multi-layer materials designed to withstand extreme diesel temperatures and vibration.
FITMENT
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins
- Direct replacement for OEM gasket part number 3946275
CROSS-REFERENCE / RELATED CUMMINS PRODUCTS
- Cummins 3944593 Turbo to Manifold Gasket
- Cummins 3945330 Center Exhaust Manifold Gasket
- Cummins 3921125 Manifold Gasket (Alternate Location)
This OEM gasket is the correct factory-spec sealing solution required when installing a replacement manifold, upgrading to performance manifolds, or repairing exhaust leaks commonly found on high-mileage 5.9L Cummins trucks.
FAQ
Will this gasket fit all 5.9L Cummins engines from 1998.5–2007?
Yes. It fits all ISB 5.9L Cummins engines used in Dodge Ram trucks from model years 1998.5 through 2007.
Is this a genuine Cummins part or aftermarket?
This is a 100% genuine Cummins OEM component sourced from authorized Cummins suppliers.
Should I replace all manifold gaskets at the same time?
Yes. Cummins recommends replacing all manifold gasket segments during manifold removal to ensure proper sealing.
Does this gasket work with aftermarket performance manifolds?
Yes. Most aftermarket 5.9L Cummins manifolds are designed around stock OEM gasket dimensions.
Specifications for Cummins 3946275
| Attribute | Value |
|---|---|
| Brand | Cummins Genuine Parts |
| Part Number | 3946275 |
| UPC | Not Published |
| GTIN | Not Published |
| Cross Reference | Replaces OE gasket used on ISB 5.9L engines |
| E-Codes | N/A (Gasket) |
| Shipping Info | Ships via USPS/UPS in protective packaging |
| Prop 65 | No known Prop 65 hazards |
