1998.5-2002 2nd Gen 5.9L 24V Cummins Parts & Performance

1998.5-2002 2nd Gen 24V Cummins Performance Parts

Maximize the horsepower, efficiency, and reliability of your electronically controlled second-generation Dodge Ram with premium 1998.5–2002 24V Cummins performance parts from Full Force Diesel. Introduced midway through the 1998 model year, the 24-valve 5.9L Cummins brought electronic control to the legendary inline-six platform using the Bosch VP44 injection pump. While this engine offers outstanding fuel economy and aggressive torque, simple upgrades to its fueling system and airflow can unlock massive gains in towing power and street performance.

Critical Fuel System Protection & Upgrades for the VP44

The electronically controlled Bosch VP44 injection pump is highly sensitive to fuel pressure. Because the factory lift pump is a known weak link, supporting your VP44 is the single most important step for any 24-valve build. Installing an aftermarket FASS or AirDog fuel-air separation system ensures your injection pump receives a constant, high-volume flow of clean, air-free diesel. Once your fueling foundation is secured, you can safely extract extra horsepower and torque by upgrading to high-flow fuel injectors and a custom electronic programmer or digital tuner.

Optimizing Airflow and Reducing Exhaust Temps

Adding extra electronic fueling means you must support it with a matched increase in clean, cold air. Restrictive stock intake horns, factory airboxes, and aging turbos hold back performance and raise exhaust gas temperatures (EGTs) under heavy loads. Upgrading to a high-flow cold air intake, an expanded intake elbow, and a larger performance turbocharger will dramatically improve compressor efficiency. Pair these with a multi-piece, high-flow exhaust manifold to help the turbo spool up faster and clear spent exhaust gases quickly, keeping your engine running cool and efficient.

Whether you are building a reliable daily tow rig or a high-performance street truck, Full Force Diesel has the selection you need to succeed. Explore our 24V Cummins subcategories above to discover high-strength head studs, manual and automatic transmission upgrades, high-flow exhaust systems, and digital gauge monitors from the industry’s most trusted diesel manufacturers.