CUMMINS
CUMMINS 3804899 OEM FRONT CRANKSHAFT SEAL – RAM 5.9L/6.7L (2003–2018)
- SKU:
- CUM3804899
- MPN:
- 3804899
- Shipping:
- Calculated at Checkout
Description
Cummins 3804899 — Front Crankshaft Seal (Front Main)
MPN: 3804899 | Also Known As: front main seal, crank seal | Related/Alternates: 3937111 (5.9 kit), 4931561 (6.7 seal), 3802820 (seal + wear sleeve)
Why This Part
- ✓ OE sealing to stop front main oil leaks on ISB engines.
- ✓ Direct-fit for 2003–2007 5.9L and 2007.5–2018 6.7L Rams (verify by VIN/ESN).
- ✓ Precision lip for long service life and leak prevention.
- ✓ Ideal when resealing timing cover or servicing harmonic balancer.
Quick Specs
| Type | Front crankshaft oil seal (front main) |
|---|---|
| OE Part # | 3804899 |
| Includes | Seal only; wear sleeve available separately (see 3802820) |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2003–2007 | Ram 5.9L ISB (24V Common-Rail) | Ram 2500/3500 |
| 2007.5–2018 | Ram 6.7L ISB (24V Common-Rail) | Ram 2500/3500 |
Notes: Also used on various ISB/QSB industrial applications—verify by ESN. For worn crank snouts, consider the wear-sleeve kit (3802820).
Often Paired With
- Wear Sleeve Kit: Cummins 3802820 (seal + sleeve for grooved crank)
- Install Tool: Cummins 3824498 front seal installer
- Balancer Bolt: ARP 147-2502 (’89–’07 5.9L) · ARP 147-2503 (’07.5–’18 6.7L)
- Timing Cover Gasket: Verify by year/application when resealing
What’s In The Box
- (1) Genuine Cummins Front Crankshaft Seal (3804899)
- Wear sleeve & installer tool sold separately (see “Often Paired With”).
Install Tips
- Inspect crank snout for grooves; use wear sleeve kit if needed.
- Use the proper installer to avoid lip damage; seat squarely.
- Clean mating surfaces; torque balancer to spec and recheck for leaks.
FAQ
WILL THIS FIT MY 2003–2018 RAM 5.9L/6.7L?Yes—3804899 is an OE front crankshaft seal commonly used on 2003–2007 5.9L and 2007.5–2018 6.7L applications. Always confirm by VIN/ESN.
IS THIS JUST THE SEAL OR DOES IT INCLUDE A WEAR SLEEVE?This listing is for the seal only. If your crank has a groove, use Cummins 3802820 (seal + wear sleeve).
WHAT ARE CLOSELY RELATED PART NUMBERS?Common related numbers include 3937111 (5.9 kit), 4931561 (6.7 seal), and 3802820 (seal + wear sleeve).
WHEN SHOULD I REPLACE THE FRONT SEAL?Anytime the timing cover is removed, the balancer is serviced, or oil is visible around the crank snout/harmonic balancer.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3804899 for correct fit, material, and sealing lip profile.
Additional Information
Vehicle Year: |
2003,2004,2005,2006,2007 |
Vehicle Make: |
DODGE RAM |
ENGINE: |
5.9L |
Part Type: |
GASKET SEAL |
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