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  • INTERSTATE-MCBEE M-3947759 VALVE TAPPET 03–18 5.9L/6.7L CUMMINS (AFTERMARKET REPLACEMENT)
  • INTERSTATE-MCBEE M-3947759 VALVE TAPPET 03–18 5.9L/6.7L CUMMINS (AFTERMARKET REPLACEMENT)

    • INTERSTATE-MCBEE M-3947759 VALVE TAPPET 03–18 5.9L/6.7L CUMMINS (AFTERMARKET REPLACEMENT)

    $9.79
    (No reviews yet) Write a Review
    SKU:
    MCBM-3947759
    Width:
    2.00 (in)
    Height:
    3.00 (in)
    Depth:
    2.00 (in)
    Shipping:
    Calculated at Checkout
    YEAR:
    2003-2018
    MAKE:
    DODGE
    ENGINE:
    5.9L,6.7L
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    Product Description

    Interstate-McBee M-3947759 Valve Tappet – 03–18 5.9L/6.7L Cummins

    OEM-style valve tappet (lifter) engineered by Interstate-McBee for 2003–2018 Dodge Ram 5.9L & 6.7L Cummins applications. Direct-fit design restores precise valve motion and durability at a fraction of OEM cost.

    • Direct replacement: Matches Cummins geometry for drop-in fit and OE performance.
    • Durable build: Premium materials and surface finish for long service life.
    • Aftermarket value: Interstate-McBee quality with significant savings vs. OEM.

    What’s Included

    • (1) Interstate-McBee valve tappet (M-3947759)

    Vehicle Fitment

    Always verify by engine serial number (ESN) for exact compatibility.

    • Dodge Ram 2500/3500 with Cummins:
      • 2003–2007 5.9L ISB (24-valve)
      • 2007–2018 6.7L ISB (24-valve)

    Install Notes

    • Follow Cummins service manual procedures for cam/tappet inspection and reassembly.
    • Use proper break-in and lubrication practices to maximize service life.

    Warranty

    Interstate-McBee new engine components include manufacturer warranty coverage. Contact us with your ESN for policy details on valve-train items.

    Why Buy From CPP Diesel

    • ESN-verified fitment support and tech guidance
    • Fast shipping & easy returns
    • Deep inventory of B-Series/ISB components for one-stop service

    FAQ

    Is this tappet a direct fit for 2003–2018 5.9L/6.7L Cummins?
    Yes. It’s listed for Dodge Ram models equipped with 5.9L or 6.7L Cummins engines covering 2003–2018. Verify by ESN for special builds.
    How many tappets does my engine need?
    These are sold individually. Most 5.9L/6.7L ISB applications require 12 tappets per engine.
    What OEM number does M-3947759 replace?
    Cummins 3947759 (commonly noted as superseding 4891226) in ISB/QSB applications.
    Can I mix old and new tappets?
    It’s best practice to replace tappets as a complete set when cam or lifter wear is present to ensure uniform break-in.
    Specifications for Interstate-McBee M-3947759
    Brand Interstate-McBee
    Part Number M-3947759
    UPC Not specified by manufacturer/seller
    GTIN Not specified by manufacturer/seller
    Shipping Info Package weight: 0.1 lb (0.05 kg).
    Approximate package dimensions: 2.1 in x 1.4 in x 1.4 in.
    Typical shipping method: Small parcel/ground. Additional carrier details not specified.
    Cross Reference Cummins: 3947759, 4891226
    Interstate-McBee: M-3947759
    Other aftermarket references may apply; verify by engine serial number (ESN).
    E-Codes Not specified
    Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
    For more information: https://www.P65Warnings.ca.gov

    Product Videos

    Custom Field

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

    Product Reviews

    Write a Review
    Specifications for Interstate-McBee M-3947759
    Brand Interstate-McBee
    Part Number M-3947759
    UPC Not specified by manufacturer/seller
    GTIN Not specified by manufacturer/seller
    Shipping Info Package weight: 0.1 lb (0.05 kg).
    Approximate package dimensions: 2.1 in x 1.4 in x 1.4 in.
    Typical shipping method: Small parcel/ground. Additional carrier details not specified.
    Cross Reference Cummins: 3947759, 4891226
    Interstate-McBee: M-3947759
    Other aftermarket references may apply; verify by engine serial number (ESN).
    E-Codes Not specified
    Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
    For more information: https://www.P65Warnings.ca.gov
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