Cummins 4939587 Lubricating Oil Pump 89-02


SKU: Cummins 4939587

1989 To 2002 3.9L 4BT and 4BTA, 5.9L Cummins Oil Pump

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Sale price$159.00

Cummins 4939587 Replacement Oil Pump

This Cummins Oil Pump is the newest OEM upgraded oil pump with a higher oil output volume than the OEM stock twelve-valve pump.


The Cummins replacement oil pump applications:

  • 1989 to 1998 Dodge 5.9L 12 Valve Cummins Diesels
  • 1998.5 to 2002 Dodge 2500 5.9L 24 Valve Cummins Diesel
  • 1998.5 to 2002 Dodge 3500 5.9L 24 Valve Cummins Diesel
  • B Series 3.9L 4B, 4BT, 4BTA, 4BTAA Series Engines
  • B Series 5.9L 6B, 6BT, 6BTA, 6BTAA Series Engines

The engine oil pump is critical for prolonged engine operation. If you see any sign of lower oil pressure, this must be addressed immediately. The oil pump should not need replacing unless you have an engine with high mileage. If you are doing an engine overhaul now is the time for this replacement to take place. The use of high-quality oil, filter, and the recommended service intervals will help prolong the life of the motor and its components.

This Cummins B-Series Oil Pump is an original OEM Cummins Oil Pump. This replacement lube oil pump 4939587 will bolt right into the above-listed Cummins engine series diesel engines. The use of an OEM Cummins Oil Pump will help ensure the proper lubrication and oil pressure. The Lube Oil pump is a vital part of your engine and a lubrication issue must be dealt with immediately to ensure a long engine life.

This 4939587 OEM Cummins Replacement Oil Pump supersedes:

  • 3901175
  • 3906414
  • 3914006
  • 3914008
  • 3918212
  • 3924720
  • 3926203
  • 3941742
  • 3937404

NOTE: This Cummins Oil Pump will not work in 2003 to current model Dodge Ram trucks with the Cummins 5.9L or 6.7L Turbo Diesel engines.

What are the benefits obtained by purchasing an OEM Cummins part?

  • Genuine Cummins Parts are backed with a manufacturer's warranty.
  • Genuine Cummins Parts provide optimum engine efficiency and peak power levels you need to get the job done.
  • OEM Cummins parts provide the exact fit for a straightforward installation reducing your downtime.
  • Cummins parts ensure you're up and running for financial protection and peace of mind.
  • by KLM Performance
  • Engine : 5.9L Cummins | Cummins 3.9L B Series 3.9L 4B, 4BT, 4BTA Series Engines
  • Flow Rate :
  • Item Number: Cummins 4939587
  • Make : : Cummins | Dodge | Ram
  • Model : 2500 | 3500 
  • Year : 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1998.5 | 1999 | 2000 | 2001 | 2002
  • Manufacturer Part No: Cummins 4939587
  • Product Application: 1989 to 2002 Cummins 5.9L,  6BT,  4BT, and 4BTA Series Engines
  • Height: 6
  • Width : 8
  • Brand: Cummins
  • FAQ : Does this OEM Cummins 4939587 Oil Pump provide an increased flow of the lubricating oil? Yes, this Cummins Oil Pump is the newest OEM upgraded oil pump with a higher oil output volume than the OEM stock twelve-valve pump.
  • Part Number: 4939587
  • Manufacturer: Cummins
  • Product Note: Cummins Parts Are A Non-Returnable Item. Please make sure you have ordered the correct part for your Cummins diesel engine!

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