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INTERSTATE MCBEE

INTERSTATE-MCBEE M-3901306 NON-ENCORE BLOCK CAM BUSHING 89–97 5.9L CUMMINS (AFTERMARKET REPLACEMENT)

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SKU:
MCBM-3901306
MPN:
M-3901306
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  • INTERSTATE-MCBEE M-3901306 NON-ENCORE BLOCK CAM BUSHING 89–97 5.9L CUMMINS (AFTERMARKET REPLACEMENT)
  • INTERSTATE-MCBEE M-3901306 NON-ENCORE BLOCK CAM BUSHING 89–97 5.9L CUMMINS (AFTERMARKET REPLACEMENT)
$6.97
724-785-4022

Description

Interstate-McBee M-3901306 Camshaft Bushing – Non-Encore Block, 89–97 5.9L Cummins 12V

Precision, OEM-style camshaft bushing for Non-Encore B-series blocks used on 1989–1997 Dodge Ram 2500/3500 5.9L Cummins 12-valve (6BT). Designed as an aftermarket replacement for Cummins 3901306, this bushing supports the front cam journal to maintain proper oil clearance and stable valve-train operation.

  • Direct-fit replacement: Matches OEM form/fit/function for Non-Encore blocks.
  • Reliable sealing & support: Helps restore proper camshaft alignment and oil film.
  • Aftermarket value: Interstate-McBee quality at a cost-effective price point.
  • Typical quantity: One bushing required per engine (front cam bore on Non-Encore blocks).

Specifications

Interstate-McBee Part # M-3901306
OEM Cross-Reference Cummins 3901306 (replaces 3901305)
Block Type Non-Encore B-Series (pre-1997.5)
Engine Family Cummins 5.9L 12V 6BT; also used on select 4B/6B industrial applications
Install Location Front camshaft bore (journal #1)
What’s Included (1) Camshaft bushing

Vehicle Fitment

Always verify by engine serial number (ESN) for best results.

  • Dodge Ram 2500/3500 5.9L Cummins (12-Valve)
    • 1989–1993 (VE rotary pump)
    • 1994–1997 (P7100 “P-pump”)
  • Industrial / Commercial: Select 4B/6B B-series engines (varies by ESN).

Helpful Notes

  • Encore vs. Non-Encore: This bushing is for Non-Encore blocks (generally through 1997). Encore blocks (≈1997.5–2002) typically use cam bushing 3940059. Verify ESN before ordering.
  • Quantity: Non-Encore 5.9L applications typically use one front cam bushing.
  • Tooling: Use a proper cam bushing installer/driver; follow Cummins procedures for sizing and alignment.

Installation Tips

  • Measure cam journal and installed bushing ID; confirm oil clearance per service manual.
  • Align oil hole(s) precisely; press bushing square to bore using a dedicated installer.
  • Lubricate on assembly; verify cam spins freely with no bind after install.

Warranty

Interstate-McBee new parts include manufacturer warranty coverage. For exact terms and claim process for this bushing, contact us with your order details.

Why Buy From CPP Diesel

  • Diesel experts with ESN-verified fitment support
  • Fast shipping and easy returns
  • Huge B-series inventory to finish the job (cams, seals, gears, front covers)

FAQ

What does “Non-Encore” mean, and will this fit my truck?
“Non-Encore” refers to earlier B-series blocks used roughly through the 1997 model year on 12-valve 5.9L engines. If your engine is 1989–1997 12V (VE or P-pump), this is the typical cam bushing. For 1997.5–2002 “Encore” blocks, a different bushing is usually required (see 3940059).
How many cam bushings does a 1989–1997 5.9L typically use?
Non-Encore 5.9L applications typically use one bushing at the front cam bore (journal #1). Check your manual and ESN.
Is special tooling required to install the bushing?
Yes. Use a cam bushing installer/driver and follow Cummins procedures. Professional press-in and sizing helps ensure proper clearance.
What’s the OEM part number cross-reference?
Cummins 3901306 (Interstate-McBee equivalent M-3901306).
What if I have an Encore block (late ’97.5–’02) or a billet cam?
Encore blocks generally use cam bushing 3940059. Billet cam applications on Encore also reference 3940059. Verify by ESN before ordering.
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