Stanadyne Injection Pumps

Remanufacturers, parts brokers, and fleets choose from more than 450 Stanadyne pump numbers across the DB4, DB2, JDB, DM4, DBG, and DE series. The pumps fit John Deere, GM, Ford, Cummins, Perkins, and Caterpillar engines in tractors, generator sets, and pickups, and complete pumps range from $750 to $5,000. Stanadyne pumps carry no core charge, and 98 listings refund $150 for the old pump, subject to inspection, with return shipping covered. Goldfarb & Associates, based in Rockville, Maryland, has supplied diesel parts since 1997.

Goldfarb & Associates sells rebuilt and new Stanadyne injection pumps, the rotary distributor pumps in which one pumping unit meters fuel for every cylinder, a design first produced as the Roosa Master in 1952. DB4 and DB2 pumps represent 79% of the range, alongside JDB, DM4, and Roosa Master DBG pumps and electronic DE and DS4 pumps.

Stanadyne pump listings show the model number, OEM cross-references such as John Deere RE numbers, condition, and engine fit. Goldfarb & Associates also buys and sells Stanadyne cores, with more than 25 pump cores among the 64 listings in its Stanadyne Core collection.

The 9 benefits of buying a replacement diesel fuel injection pump are listed below.

• Restored Fuel Metering: A working rotary pump restores metered fuel delivery to each cylinder.
• Improved Cold Starting: Correct injection pressure returns quick, reliable starts in cold weather.
• Recovered Engine Power: Full fuel delivery restores the rated power lost to a worn pump.
• Improved Fuel Economy: Accurate fuel delivery ends the fuel waste of a worn pump.
• Reduced Exhaust Smoke: Correct fuel delivery cuts the black smoke a failing pump causes.
• Stabilized Idle: Even fuel delivery to each cylinder steadies a rough idle.
• Matched by Part Number: A pump with the original part number matches the engine's fuel specification.
• Lowered Emissions: Correct fuel delivery keeps exhaust emissions within the engine's design limits.
• Reduced Downtime: Replacing a failing pump returns the truck, tractor, or generator to work.