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  • DODGE CUMMINS
  • FORD POWERSTROKE
  • GM DURAMAX
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  • CUMMINS CONVERSION PARTS
  • CPP GEAR
  • USED PARTS
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    • ENGINE PARTS

    ENGINE PARTS & ACCESSORIES — 1994–1998 DODGE RAM 5.9L CUMMINS (12-VALVE, P7100)

    CPP Diesel stocks the critical internal and top-end parts your Second-Gen needs: gasket sets, head studs/bolts, camshafts, valve springs, pushrods, tappets, timing gear case parts, KDP fixes, sensors, cylinder heads, rebuild kits and more—curated specifically for 1994–1998 5.9L Cummins 12-valve (P7100). Shop proven components from ARP, Mahle, Cummins OEM, Hamilton Cams, Interstate-McBee, and CPP Diesel.

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    Featured 94–98 Picks

    Why Buy from CPP Diesel

    • Second-Gen Focus: Parts vetted on 1994–1998 P7100 trucks for fit, durability and real gains.
    • Top Brands: ARP, Cummins OEM, Mahle, Hamilton Cams, Interstate-McBee, CPP Diesel.
    • Expert Support: Head gasket thickness, valve lash, spring pressures, and cam choice for your goals.
    • Fast Shipping: Popular 12-valve components ship quickly from U.S. warehouses.

    Explore the full 1994–1998 Cummins catalog and pair engine work with cooling upgrades and gauges to keep temps in check.

    Helpful Notes

    • Head gasket thickness: Most reseals use standard thickness; thicker options (.010) help with decked heads—verify piston protrusion and compression goals.
    • Studs vs. bolts: Studs improve clamping on tuned/towed trucks; always follow lube and torque specs, then re-check after heat cycles.
    • Cam & springs: Bigger cams often require stiffer springs; choose spring rate for your boost/RPM targets and set lash after final torque.
    • KDP fix: Locking the dowel pin during timing cover service is cheap insurance on any 12V.
    • Seals & O-rings: P7100 timing case and pump seals get brittle—replace during front cover/KDP work.

    Frequently Asked Questions

    Do I need head studs on a stock-turbo 12-valve?

    For mild tuning and towing, ARP studs are smart insurance. Stock bolts can work at factory power, but studs provide better long-term clamping.

    Which cam works best for a tow/daily truck?

    The Hamilton 188/220 is a proven all-around grind that improves spool, torque, and EGT control without hurting drivability.

    What valve springs should I run?

    Pick seat pressure for your boost/RPM. See our Valve Springs section for options that pair with common turbo/cam setups.

    Is the Killer Dowel Pin (KDP) really an issue on 12V engines?

    Yes—securing it during timing cover service prevents catastrophic gear damage. Use the CPP KDP Kit.

    Which gasket sets do I need for a top-end reseal?

    Use Mahle HS4068 (upper) with the proper head gasket, and add the CS4068 (lower) for pan/rear main/timing cover items.

    I have a front cover/P-pump oil leak—what should I replace?

    Inspect the timing cover seal and the P7100 timing case O-ring (3969698); replace both while the cover is off.

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