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INTERSTATE MCBEE

INTERSTATE-MCBEE M-3942565 VALVE TAPPET 98.5–02 5.9L CUMMINS (AFTERMARKET REPLACEMENT)

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SKU:
MCBM-3942565
MPN:
M-3942565
Shipping:
Calculated at Checkout
$18.27
724-785-4022

Description

Interstate-McBee M-3942565 Valve Tappet (OEM# 3942565) – 98.5–02 5.9L Cummins 24V

OEM-style valve tappet (lifter) engineered by Interstate-McBee for the 1998.5–2002 5.9L Cummins 24-valve (ISB). Precision-machined for correct pushrod cup geometry and stable cam-to-tappet contact. Sold individually— 12 required per engine.

  • Direct replacement: Matches OEM Cummins 3942565 for fit and function.
  • Durable materials & finish: Built for long service life in stock and tow/haul applications.
  • Correct footprint design: Clears the fuel-lift-pump eccentric and works with stock or mild cams.
  • Aftermarket value: Interstate-McBee quality at a fraction of OEM pricing.

Specifications

Manufacturer Interstate-McBee
Part Number M-3942565
OEM Cross-Ref Cummins 3942565
Engine Family Cummins B-Series / ISB 5.9L (24V)
Years 1998.5, 1999, 2000, 2001, 2002
Sold Individually (12 pieces required per engine)

What’s Included

  • (1) Interstate-McBee valve tappet (lifter)

Vehicle Fitment

Always verify with your engine serial number (ESN) when possible.

  • Dodge Ram 2500/3500 — 5.9L Cummins 24-valve ISB (1998.5–2002)

Installation Notes

  • Use clean engine oil for prelube and ensure lifters move freely in bores.
  • Inspect cam lobes, pushrods, and rocker components during service; replace worn parts as needed.
  • Follow the Cummins service manual for torque values and lash adjustments.

Warranty

Interstate-McBee new engine components include manufacturer warranty coverage. Contact us with your ESN for terms specific to this tappet.

Why Buy From CPP Diesel

  • Diesel-specialist fitment support for Cummins B-Series
  • Fast shipping and easy returns
  • ESN verification available to prevent mis-orders

FAQ

How many tappets do I need?
They are sold individually. You need 12 tappets for one 5.9L 24V engine.
Will this fit my 12-valve 1989–1998 5.9L?
No—those typically use a different OEM tappet (e.g., 3931623). This M-3942565 is for 1998.5–2002 24-valve ISB applications.
What camshafts is this compatible with?
Stock and mild aftermarket grinds for 24V ISB. For aggressive cam profiles, consider matched performance tappets.
Do I need special sealants or tools?
Follow the Cummins service manual. Prelube lifters, keep parts clean, and torque to spec. No special tools beyond standard valvetrain service tools.
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