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 are looking to build a high-horsepower competition sled-puller or a bulletproof daily driver that can tow anything, Full Force Diesel has the selection you need. Explore our second-generation 12V subcategories above to discover high-quality engine components, manual and automatic transmission upgrades, head studs, and digital gauges from the industry’s leading manufacturers.