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CUMMINS

CUMMINS 4890833 OEM REAR MAIN CRANKSHAFT OIL SEAL – RAM 6.7L (2007.5–2018) / SELECT 5.9L BY ESN

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SKU:
CUM4890833
MPN:
4890833
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  • CUMMINS 4890833 OEM REAR MAIN CRANKSHAFT OIL SEAL – RAM 6.7L (2007.5–2018) / SELECT 5.9L BY ESN
  • CUMMINS 4890833 OEM REAR MAIN CRANKSHAFT OIL SEAL – RAM 6.7L (2007.5–2018) / SELECT 5.9L BY ESN
  • CUMMINS 4890833 OEM REAR MAIN CRANKSHAFT OIL SEAL – RAM 6.7L (2007.5–2018) / SELECT 5.9L BY ESN
  • CUMMINS 4890833 OEM REAR MAIN CRANKSHAFT OIL SEAL – RAM 6.7L (2007.5–2018) / SELECT 5.9L BY ESN
  • CUMMINS 4890833 OEM REAR MAIN CRANKSHAFT OIL SEAL – RAM 6.7L (2007.5–2018) / SELECT 5.9L BY ESN
$80.56
724-785-4022

Description

Genuine Cummins

Cummins 4890833 — Rear Crankshaft (Rear Main) Oil Seal

MPN: 4890833  |  Also Known As: rear main seal, rear crankshaft seal  |  Cross-Ref (ID): PAI 136122  |  Typical Use: Tier 3 ISB/QSB 6.7L; select ISB 5.9L applications (verify by ESN)

Why This Part

  • ✓ OE sealing performance to stop rear main oil leaks and stabilize oil control.
  • ✓ Unitized seal design built to Cummins specs for durability.
  • ✓ Application-accurate for most 6.7L ISB (2007.5–2018) and select 5.9L blocks — always verify by ESN/VIN.
  • ✓ Helps prevent clutch/flywheel contamination (manual) or torque converter mess (auto).
OE Fit Unitized Seal 1 Per Engine

Quick Specs

Type Rear crankshaft (rear main) oil seal
OE Part # 4890833
Dimensions (ref.) ~5.102" ID × 6.102" OD × 0.625" width (unitized)
Qty Required 1 per engine (sold individually)
Common Pairings Wear-sleeve kit 3926126 (if crank sealing surface is worn)

Verified Fitment (Automotive)

Year RangeEngineChassis
2007.5–2018 Ram 6.7L ISB (24V Common-Rail) Ram 2500/3500
2003–2007* Ram 5.9L ISB (select blocks) Ram 2500/3500

Notes: Cummins indicates 4890833 is used primarily on Tier 3 6.7L ISB/QSB engines. Some 5.9L (’03–’07) and certain EU-market blocks may use this seal; others use alternate P/N 5259499. Always confirm by VIN/ESN before ordering.

Often Paired With

  • Rear Main Seal + Wear Sleeve Kit: Cummins 3926126 (for grooves/wear on crank surface)
  • Alternate Seal (common on many 5.9/6.7): Cummins 5259499 (verify by ESN)
  • Installer Tool: Rear seal installer/driver for B-Series (shop use)

What’s In The Box

  • (1) Genuine Cummins Rear Main Oil Seal (4890833)
  • Wear sleeve & installer tools not included (see “Often Paired With”).

Install Tips

  • Inspect crank sealing surface; if grooved, use the wear-sleeve kit (3926126).
  • Clean bore and lightly oil seal OD per service manual; drive squarely to spec.
  • Allow proper cure/settle time where applicable; verify for leaks after warm-up.

FAQ

WILL THIS FIT MY 6.7L CUMMINS RAM?

Yes—4890833 is commonly used on 2007.5–2018 6.7L ISB (verify by VIN/ESN).

DOES THIS FIT 5.9L TRUCKS TOO?

Sometimes. Certain 2003–2007 5.9L blocks use 4890833 (including some EU-market castings). Many others use alternate P/N 5259499—confirm by ESN.

WHAT’S THE DIFFERENCE BETWEEN 4890833 AND 5259499?

Both are rear main seals for B-Series. Coverage differs by block and model year. 4890833 is associated with Tier 3 6.7L and select 5.9L; 5259499 sees broad 1989–2018 Ram coverage. Always validate by ESN.

DO I NEED A WEAR SLEEVE?

If the crank seal surface is grooved/worn, use the Cummins 3926126 wear-sleeve kit to ensure a proper seal.

IS THIS A GENUINE CUMMINS PART?

Yes—OE Cummins 4890833.

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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:
Rear Crankshaft Oil Seal
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