1994-1998 2nd Gen 5.9L 12V Cummins Parts & Performance

1994-1998 2nd Gen 12V Cummins Performance Parts

Maximize the horsepower, reliability, and towing performance of your mechanical second-generation Dodge Ram with premium 1994-1998 12V Cummins performance parts from Full Force Diesel. Equipped with the legendary Bosch P7100 injection pump, the 1994 to 1998 5.9L 12-valve Cummins inline-six is widely regarded as one of the most durable and tunable diesel platforms ever engineered. With no electronics to limit your build, simple mechanical tuning and targeted airflow upgrades can easily unlock massive increases in torque and throttle response.

Unlocking Power in the Bosch P7100 Injection Pump

The mechanical Bosch P7100 (or "P-pump") is the heart of the 2nd Gen 12V's legendary reputation. Modifying this fuel injection system is highly cost-effective and yields immediate results. Upgrading your fuel injectors, installing high-flow delivery valves, swapping in custom fuel plates, or putting in a 3,000 or 4,000 RPM governor spring kit will completely reshape your engine's powerband. Support these changes with a heavy-duty mechanical lift pump or an aftermarket fuel air separation system to ensure consistent, high-volume fuel pressure to your P-pump at all times.

Improving Airflow & Lowering Exhaust Gas Temperatures (EGTs)

To keep your increased mechanical fueling running clean and efficient, your engine needs to breathe. Restrictive stock manifolds and aging factory turbos lead to elevated EGTs and high backpressure under heavy loads. Upgrading to a multi-piece, high-flow exhaust manifold prevents the common cracking and shrinking of factory castings while helping your turbocharger spool up faster. Pair your exhaust upgrades with a larger turbocharger, a high-flow cold air intake, and a heavy-duty intercooler to pack cold, dense air into the cylinders for maximum combustion efficiency.

Whether you're building a high-horsepower competition sled-puller or a bulletproof daily driver that can tow anything, Full Force Diesel has the selection you need. Browse the full subcategory directory below to find exactly what your 2nd Gen 12V needs.

Complete 1994-1998 2nd Gen 12V Cummins Parts Directory

• Cold Air Intakes: High-flow intake systems to feed your P-pump-fueled engine with clean, dense air.
• Fuel System: Lift pumps, fuel-air separation systems, and P7100 tuning components for consistent pressure.
• Turbo: Larger drop-in and performance turbochargers to lower EGTs and speed up spool.
• Engine Parts: Gaskets, head studs, and internal components built for increased mechanical fueling and boost.
• Cooling System: Radiators and thermostats to keep your 12V running cool under heavy towing.
• Intercooler: Heavy-duty intercoolers to pack cold, dense air into the cylinders for cleaner combustion.
• Fuel Tanks: Replacement and auxiliary tanks for reliable fuel delivery and extended range.
• Exhaust System: Multi-piece, high-flow exhaust manifolds and systems to reduce backpressure and cracking.
• Gauges & Pods: Analog and digital monitors to track boost, EGT, and fuel pressure in real time.
• Transmission: Heavy-duty manual and automatic transmission upgrades built to handle increased torque.
• Steering: Linkage and steering box upgrades to eliminate play and restore tight tracking.
• Suspension: Shocks, ball joints, traction bars, and track bars built for towing capability and control.
• Maintenance: Oils, filters, and additives to keep up with routine service intervals.
• Exterior Accessories: Running boards, mud guards, and lighting to protect and personalize your truck.
• Axle and Differential: Ring & pinion sets and differential covers for towing-ready drivetrains.