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The 1994–1998 5.9L Cummins is one of the most respected diesel engines ever produced, featuring the legendary 12-valve design and the mechanical Bosch P7100 “P-Pump” fuel system. Found in Dodge Ram 2500 and 3500 trucks, this engine is celebrated for its unmatched reliability, simple mechanical layout, and easy horsepower potential. Whether you’re restoring a Second Gen workhorse or building a high-performance setup, Thoroughbred Diesel has everything you need—from fuel system parts to turbo upgrades—to keep your 12-valve Cummins running strong.
Our selection of 1994–1998 Cummins 5.9L parts includes everything you need for maintenance, restoration, and performance. Popular upgrades for this engine include Industrial Injection P7100 injection pump parts, upgraded injectors, performance turbochargers, and exhaust manifolds from BD Diesel. Many owners also choose South Bend or Valair clutch kits for manual trucks, AFE cold air intake systems for better airflow, and Pacbrake exhaust brakes for towing control. For reliability and longevity, we stock complete gasket kits, filters, sensors, and cooling system components to keep your 12-valve running strong.
Whether you’re restoring a classic Ram 2500, upgrading a work-ready Ram 3500, or building a performance project, Thoroughbred Diesel has the parts and expertise to help you get the most out of your 5.9L Cummins. Shop trusted brands, browse by category, or explore featured products below — everything you need for your 1994–1998 Cummins is right here.
The **1994–1998 5.9L Cummins** is known for its legendary 12-valve design and the reliable Bosch P7100 “P-Pump” injection system. These Thoroughbred Diesel videos highlight performance upgrades, fueling tips, and expert advice to help your Second Gen Cummins stay strong, efficient, and ready for anything.