CUMMINS
CUMMINS 3946275 OEM EXHAUST MANIFOLD GASKET – RAM 5.9L (1998.5–2007)
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- SKU:
- CUM3946275
- MPN:
- 3946275
- Shipping:
- Calculated at Checkout
Description
Genuine Cummins
Cummins 3946275 — Exhaust Manifold Gasket (Sold Individually, 6 Required)
MPN: 3946275 | Also Known As: manifold-to-head gasket | Related/Alternates (ID only): 5266422, 5447591, MS19225
Why This Part
- ✓ OE sealing between the cylinder head and exhaust manifold.
- ✓ Direct-fit for 1998.5–2007 Ram 5.9L ISB (24V).
- ✓ Sold individually — order 6 per engine.
- ✓ Durable OEM materials for heat cycling and clamp load.
OE Fit Stock Replacement 6 Per Engine
Quick Specs
| Type | Exhaust manifold-to-cylinder head gasket |
|---|---|
| OE Part # | 3946275 |
| Qty Required | 6 per engine (sold individually) |
| Material | OE multi-layer / composite style per application |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1998.5–2007 | Ram 5.9L ISB (24V) | Ram 2500/3500 |
Notes: For many 6.7L Ram (2007.5+) applications, Cummins gasket 5447591 is commonly used. Part 3946275 is also seen on certain ISB/QSB 6.7 industrial (EPA13+) engines — always confirm by VIN/ESN.
Often Paired With
- Exhaust Manifold Bolt/Spacer Kit (refresh hardware when manifold is off)
- Turbo-to-Manifold Gasket: 3949530 (’03–’07 5.9L) · 5260648/5266419 (’07.5+ 6.7L)
- Manifold-to-Turbo Stud/Nut Kit as needed
What’s In The Box
- (1) Genuine Cummins Exhaust Manifold Gasket (3946275)
- Six required per engine (order quantity 6 for a full set)
Install Tips
- Clean mating surfaces; chase threads; use proper torque and sequence.
- Warm up, then re-check fastener torque after initial heat cycle if procedure calls for it.
- Inspect manifold for warpage/cracks; replace hardware if stretched or corroded.
FAQ
WILL THIS FIT MY 1998.5–2007 5.9L CUMMINS RAM?Yes—3946275 is the OE manifold-to-head gasket used on 1998.5–2007 5.9L ISB (24V) Ram 2500/3500.
HOW MANY GASKETS DO I NEED?Six per engine. This listing is sold individually—order quantity 6 for a complete set.
WILL THIS WORK ON 6.7L TRUCKS?Many 6.7L Ram applications use gasket 5447591. 3946275 is used on some ISB/QSB 6.7 (industrial). Always verify by VIN/ESN.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3946275 for proper fit and sealing performance.
DOES THIS COME AS A 6-PIECE SET?No—this is a single gasket. Add six to cart for a full engine set, plus hardware as needed.
Additional Information
Vehicle Year: |
1998.5,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018 |
Vehicle Make: |
DODGE |
ENGINE: |
5.9L |
Part Type: |
Manifold Gaskets |
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