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INTERSTATE MCBEE

INTERSTATE-MCBEE M-4890833 REAR CRANKSHAFT OIL SEAL 98.5–02 5.9L CUMMINS (AFTERMARKET REPLACEMENT)

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SKU:
MCBM-4890833
MPN:
M-4890833
Shipping:
Calculated at Checkout
$45.19
724-785-4022

Description

Interstate-McBee M-4890833 Rear Crankshaft Oil Seal – 98.5–02 5.9L Cummins

Premium aftermarket, OEM-style rear crankshaft (rear main) oil seal designed for 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24-Valve ISB. The unitized seal assembly helps restore leak-free operation and long service life when servicing the flywheel housing/rear main area.

  • OEM-style fit & function: Matches Cummins 4890833 reference for ISB B-series applications.
  • Unitized design: Stable lip support and consistent sealing performance.
  • Aftermarket value: Interstate-McBee quality at a fraction of OEM kit pricing.
  • Seal-only configuration: Ideal when your crank surface is in good condition (repair sleeve not included).

Specifications

Interstate-McBee Part M-4890833
OEM Reference Cummins 4890833 (rear crankshaft oil seal)
Type Unitized rear main (seal only; no wear sleeve)
Nominal Dimensions 5.102" ID × 6.102" OD × 0.625" W (129.60 × 154.99 × 15.87 mm)
Position Rear of crankshaft (flywheel housing)
Included (1) Rear crankshaft oil seal

Vehicle Fitment

Always verify by Engine Serial Number (ESN) for best results.

  • Dodge Ram 2500/3500 – 5.9L Cummins 24-Valve ISB
    • 1998.5, 1999, 2000, 2001, 2002
  • Additional Applications (engine-side): Part 4890833 is also used across select Cummins B / ISB / QSB platforms (fit varies by ESN and rear housing). Check ESN when outside the above pickup range.

Installation Notes

  • Inspect crank sealing surface; if grooved, consider a rear seal + wear sleeve kit (e.g., Cummins 3926126).
  • Use a dedicated installer tool for square seating and proper depth.
  • Follow the Cummins service manual for orientation, depth, and torque specs; avoid contaminating the sealing lip.

Warranty

Interstate-McBee engine service parts include manufacturer warranty coverage. For terms and claims, contact us or refer to the maker’s current policy.

Why Buy From CPP Diesel

  • Diesel-specialist fitment help (ESN verification available)
  • Fast shipping & easy returns
  • Matching parts in stock (rear cover gasket, housing, flywheel bolts, installer tools)

FAQ

Does M-4890833 include a repair sleeve?
No—this listing is for the seal only. If the crank surface is worn, use a kit that includes a wear sleeve (e.g., Cummins 3926126).
Will it fit my 1998.5–2002 5.9L Cummins 24V Ram?
Yes—this Interstate-McBee seal matches the OEM 4890833 spec used on 98.5–02 5.9L ISB applications. Verify by ESN to avoid housing variances.
Is this compatible with other B/ISB/QSB engines?
4890833 is used across various B/ISB/QSB engines, but applications vary by ESN and rear housing. Check your ESN for confirmation.
How do I know if I need the sleeve-type kit instead?
If there’s a groove on the crank sealing surface or prior leakage left damage, choose a seal kit with a wear sleeve for a proper repair.
What installer tool is recommended?
A rear main seal installer designed for Cummins B/ISB engines ensures correct depth and alignment; this reduces rework and leaks.
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