1994–1998 DODGE RAM 5.9L CUMMINS (12-VALVE P7100)

This hub is dedicated to the legendary Second-Gen 12-valve Cummins with the P7100 mechanical injection pump (1994–1998). Whether you’re restoring a workhorse, building a reliable tow rig, or adding power the right way, CPP Diesel curates parts that fit, last, and perform on your 2500/3500.

Not sure where to start? Jump into the most-visited systems below. Each section contains hand-picked parts, install hardware, and tech-friendly notes for your exact platform.

Shop Popular Systems

AIR INTAKE SYSTEMS & FILTERS — filtration & airflow.
COOLING SYSTEM — radiators, water pumps, thermostats, hoses.
DIFFERENTIAL & DRIVETRAIN — gears, lockers, shafts, hubs.
ENGINE PARTS & ACCESSORIES — gaskets, KDP fixes, studs/bolts.
EXHAUST SYSTEM & COMPONENTS — downpipes, systems, brakes.
INTERCOOLERS & BOOST TUBES — charge-air coolers, pipes, boots.
STEERING / SUSPENSION — track bars, tie rods, shocks, air-assist.
TRANSMISSION / TRANSFER CASE — NV4500, 47RH/47RE, pans, coolers.
TURBOCHARGER & RELATED — HX35 replacements, S300 upgrades.
FUEL SYSTEM — lift pumps, lines, filters, injectors, P-pump parts.
GAUGES / RELATED — EGT, boost, trans temp, mounts.

Why Buy from CPP Diesel

Second-Gen Specialists: Parts vetted on 1994–1998 platforms for fitment and durability.
Top Brands: Cummins, ARP, South Bend, Valair, BorgWarner, BD, ATS, FASS, AirDog, Autometer and more.
Expert Support: P-pump tuning basics, turbo sizing, clutch/converter guidance, and cooling upgrades.
Fast Shipping: Popular 12-valve components ship quickly from U.S. warehouses.

Helpful Notes

Model split: This category covers mechanical-injection 12-valve (’94–’98). For the 24-valve VP44 (’98.5–’02), see our dedicated section. Go to 98.5–02 5.9L.
Trans IDs: Automatics are typically 47RH (’94–’95) and 47RE (’96–’98); manuals are NV4500. Verify before ordering service parts.
Common reliability items: KDP repair, lift pump health, quality filtration, and cooling stack cleanliness.
Popular turbo path: Fresh HX35 or S300 SX-E drop-in with proper downpipe/outlet and fueling to match.

Browse the complete 94–98 5.9L Cummins catalog or jump straight into the systems above.

Frequently Asked Questions

Does my 1998 truck belong in this 12-valve section?

Yes if it’s a 12-valve P7100 (built before the mid-’98 changeover). If you have a 24-valve VP44, shop the 1998.5–2002 section.

Which automatic transmission do I have: 47RH or 47RE?

’94–’95 trucks are typically 47RH (hydraulically controlled); ’96–’98 are usually 47RE (electronic governor). Match parts by year/VIN and check our Transmission/Transfer Case page.

What are the first reliability upgrades for a daily/tow 12-valve?

KDP fix, quality lift pump/filtration, coolant service and a trans temp/EGT gauge. Then consider an HX35 refresh or mild S300 upgrade to improve driveability.

Will S300 turbos bolt on?

Many S300 options are near drop-in for 12-valve trucks but may need an outlet/downpipe change and oil line updates. See Turbocharger & Related for matched kits and hardware.

Which fuel parts are specific to the 12-valve?

The P7100 (P-pump) uses mechanical fueling. Injectors, lines, and pump parts differ from 24-valve VP44 trucks. Shop our Fuel System for 12-valve-specific components.