1989-1993 Dodge 5.9L Cummins Injection Pumps

The VE44 injection pump on the 1989-1993 Ram 5.9L Cummins

All five first-gen model years use the same pump: a Bosch VE44 rotary distributor pump mounted on the driver side of the gear housing on the Cummins 6BT. It is driven off the front gear train, and its timing is set mechanically. There is no ECM, no rail and no CP3. One plunger inside the VE meters and pressurizes fuel for all six cylinders in turn and sends it through six steel lines to mechanical Bosch injectors. A cam-driven transfer pump on the block feeds the VE, but the transfer pump only moves fuel; the VE makes the injection pressure. From the factory, every year carries the same rating, 160 hp at 2,500 rpm and 400 lb-ft at 1,600 rpm. For 1994 the second-gen Ram moved to the Bosch P7100 inline pump, and the P7100 is the pump first-gen owners convert to when they outgrow the VE.

What fails and why

• Seal leaks. The throttle-shaft O-ring and the head and cover seals harden over the decades. Look for diesel weeping at the throttle shaft or pump body, a fuel smell, or a slow drip onto the block.
• Wear from today's fuel. The VE was designed for higher-sulfur diesel. The 2007 ULSD mandate cut the natural lubricity it relied on, and the risk is accelerated wear, sticking and lower output over time.
• Linkage that looks like a pump problem. A stretched throttle cable, worn pedal linkage and a kickdown cable that tops out early keep the pump arm from reaching full travel. Diesel Army found one truck only turning about 1,900 rpm that should have spun past 2,500, and freed it to about 2,800 rpm. Nearly an inch of pedal play, a flat top end and early automatic shifts are the signs.

Rule out the linkage and the supply side before you condemn the pump. A tired transfer pump, or the factory draw-straw pickup that loses suction near a quarter tank, causes power loss under load and surging that can look like a pump fault.

Stock replacement vs. upgrade

If the pump runs well and only leaks, reseal it. The Bosch VE seal kit, VEB-F002D20352, is the reseal option for a leaking 1989-1993 pump. If the pump itself is worn out, a stock-replacement or remanufactured VE is the right call. Those units are sold in non-intercooled and intercooled calibrations, so the intercooler question decides which one you buy.

Before any pump work, restore the throttle linkage. A pedal spacer to take out the pedal play, a shortened ball-socket link, a pump-arm hole change and a correct kickdown cable adjustment give the pump lever its full travel back without changing fueling.

The bigger step is a pump swap. Diesel Army rates the VE as topping out around 500 hp and lists the P7100 from 1994-1998 trucks as the pump to move to, and a documented 1991 that reached 660 hp made that switch. First-gen specialists treat P7100 conversion as its own category of parts. It is not a bolt-on job, and the pump, supply side and injectors all have to be matched to the power level you plan to run.

What we carry

• Cummins 4932713 genuine VE fuel injection pump gear, titled for 1989-1993: the OE gear that drives the VE off the front gear train.
• MAHLE D33079 fuel heater gasket, titled for 1989-1993.
• Fleece Performance Engineering FPE-CUMM-FBOP mechanical fuel pump block-off plate, titled for 1989-1998. It covers the boss on the block once the cam-driven transfer pump comes off for an electric lift pump system.

For filtration, injectors and lines, see this truck's other Fuel System collections, or call and we'll help you put the whole job together.

Fitment notes

• Intercooler, not year. Vendors label VE pumps 1989-1990 for non-intercooled and 1991-1993 for intercooled trucks, but the intercooler arrived mid-1991. Early-1991 trucks are non-intercooled. Look for the factory air-to-air intercooler before you order a pump.
• Removal tool. Because the VE is gear-driven off the front cover, pulling it requires an injection-pump removal tool, listed with 1989-2018 fitment. Timing is set mechanically, so it has to be right on reinstall.
• Block-off plate range. The Fleece plate is titled 1989-1998, which covers both the VE-pump and P-pump halves of the 12-valve era.
• Bleed after the work. Opening the fuel system lets air in. On a stock first gen, purge it with the hand primer on the transfer pump.

When in doubt, run the fitment checker on the product page or call with your VIN.

Frequently asked questions

Which VE pump does my 1989-1993 Cummins need?

It depends on whether the truck has the factory intercooler. Stock and reman VE44 units are sold in non-intercooled and intercooled calibrations, and vendors label them 1989-1990 and 1991-1993. The intercooler actually arrived mid-1991, so an early-1991 truck takes the non-intercooled pump.

My VE pump is leaking. Do I need a new pump?

Not necessarily. Throttle-shaft O-ring and head and cover seal leaks are a known service item as the seals harden with age. If the pump otherwise runs well, the Bosch VE seal kit (VEB-F002D20352) is the reseal option. Save the replacement pump for one that is worn, not just weeping.

Why won't my truck reach rated rpm?

Check the throttle linkage before the pump. A stretched cable, worn linkage and an early-topping kickdown cable keep the pump arm from full travel; Diesel Army found a truck turning about 1,900 rpm that should have passed 2,500. A pedal spacer, shortened ball-socket link, pump-arm hole change and kickdown adjustment restore that travel with no fueling change.

When does a P7100 conversion make sense?

When your power goal is past what the VE can support. Diesel Army puts the VE's ceiling around 500 hp and names the P7100 from 1994-1998 trucks as the upgrade pump. The swap is not a bolt-on, so plan the supply side and injectors along with it, and call us to talk through the job.

Do I need special tools to pull the injection pump?

Yes. The VE is gear-driven off the front cover, so removal calls for an injection-pump removal tool, listed with 1989-2018 fitment, and timing is set mechanically. If you would rather hand it off, we install what we sell at our shop in Wildwood, FL.

Not sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.