1994–1998 5.9L Cummins Injection Pumps & Fuel Supply

Shop injection pumps and fuel-supply components for 1994–1998 5.9L Cummins applications. This collection includes stock and performance P7100 injection pumps, delivery valves, fuel lines, pump-tuning components and FASS fuel-supply systems.

The high-pressure injection system and the low-pressure fuel-supply system perform different jobs but work together. Match pump and supply-system upgrades to the injectors, tuning, intended power level and exact application. Confirm the exact model year and the current component or part number when a listing calls out an application break.

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1994–1998 5.9L Cummins Injection & Fuel-System Options

The 1994–1998 5.9L Cummins remains a 12-valve 6BT but uses the Bosch P7100 mechanical inline injection system. Exact year, transmission and component configuration can still matter when selecting fuel and turbo parts.

This collection includes stock and performance P7100 injection pumps, delivery valves, fuel lines, pump-tuning components and FASS fuel-supply systems. The injection pump creates the high pressure required by the engine's injection system, while a lift or supply pump moves fuel from the tank and feeds the high-pressure side. Upgrading one does not replace the function of the other.

Confirm the exact model year and the current component or part number when a listing calls out an application break. For performance combinations, match pump capacity to injector size, tuning and intended power level rather than choosing a pump only by an advertised flow number.

Related Cummins collections: Engines & Engine Parts, Fuel Injectors & Components, Turbochargers & Turbo Parts.

Frequently Asked Questions

What injection pump does a 1994–1998 5.9L Cummins use?

This 12-valve generation is centered on the Bosch P7100 mechanical inline injection pump. The collection also includes pump-tuning components and low-pressure fuel-supply systems.

Is an injection pump the same thing as a lift pump?

No. The injection pump creates the high fuel pressure required by the injection system. A lift or supply pump moves fuel from the tank and feeds the high-pressure side. Both are important, but they perform different jobs.

How should I choose a stock or performance Cummins fuel pump?

Start with exact year and application, then match pump capacity to the injectors, tuning and intended power level. Confirm the exact model year and the current component or part number when a listing calls out an application break. Do not choose a pump only by an advertised flow or horsepower number.

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