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INTERSTATE MCBEE

INTERSTATE-MCBEE M-4945701 REAR CAMSHAFT SEAL 03–21 5.9L/6.7L CUMMINS (AFTERMARKET REPLACEMENT)

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SKU:
MCBM-4945701
MPN:
M-4945701
Shipping:
Calculated at Checkout
$6.99
724-785-4022

Description

Interstate-McBee M-4945701 Rear Camshaft / Bellhousing Adapter Seal – 03–21 5.9L/6.7L Cummins

Direct-fit rectangular ring (rear cam/bellhousing adapter seal) that sits between the block and adapter plate to seal the cam port on 2003–2021 5.9L & 6.7L Cummins engines. OEM-style material and profile for reliable leak prevention and quick service.

  • OEM-style fit: Matches Cummins profile for trouble-free installation.
  • Leak fix at the source: Seals the camshaft port at the bellhousing adapter.
  • Aftermarket value: Interstate-McBee quality at a fraction of OEM box pricing.
  • Durable elastomer: Rectangular ring design maintains sealing under heat and vibration.

Specifications

Interstate-McBee Part M-4945701
OEM Cross-Reference 4945701 (Cummins)
Supersedes/Replaces 3947328 (earlier design)
Type Rectangular ring, rear cam/bellhousing adapter seal
Position Adapter plate to block (camshaft port)
Material High-grade elastomer
What’s Included (1) Rectangular ring seal

Vehicle Fitment

Verify by engine serial number (ESN) for best results.

  • Dodge/Ram 2500/3500 – 5.9L Cummins ISB (24V): 2003–2007
  • Dodge/Ram 2500/3500 – 6.7L Cummins ISB: 2007.5–2021

Install Notes

  • Clean the adapter plate and block groove thoroughly; remove old seal residue.
  • Lightly lubricate the new seal (clean engine oil) to avoid pinching.
  • Inspect crankcase ventilation and rear main area for unrelated leaks before reassembly.

Warranty

Interstate-McBee new-part warranty applies; contact us for category-specific terms on sealing components.

Why Buy From CPP Diesel

  • ESN-verified fitment help for Cummins ISB platforms
  • Fast shipping and easy returns
  • Curated B-Series/ISB sealing solutions for complete leak fixes

FAQ

Is this the same as a rear main seal?
No—this is the rear camshaft/bellhousing adapter rectangular ring. The rear main seal is a separate crankshaft seal.
Will it fit both 5.9L (2003–2007) and 6.7L (2007.5–2021)?
Yes—this seal is used across 2003–2021 ISB platforms. Always verify by ESN for edge cases.
What part does this replace?
It cross-references Cummins 4945701 and supersedes 3947328 (earlier design).
Any sealant required?
No RTV is used on the ring itself. Clean the groove, lightly oil the seal, and install per Cummins procedure.
Signs I need this seal?
Oil seepage at the adapter plate/bellhousing area after ruling out rear main seal and valve cover/CCV sources.
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Additional Information

YEAR:
2003-2018
MAKE:
DODGE
ENGINE:
5.9L,6.7L
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