Home - Return to Previous Page
Additional Images

4003950 | Cummins L10/M11 Oil Pump, New

Pricing: $262.11

Customize Your Item



Risking your engine on a faulty Oil Pump? It’s time for a replacement.

We all know losing oil pressure can result in catastrophic damage to your engine. An oil pump is a lot cheaper and easier to install than a full rebuild kit, so why risk it? Replace your faulty Oil Pump with one from Highway and Heavy Parts.

You expect a lot from your rig. Keep it running cool, the way it was designed, with a premium aftermarket Oil Pump from HHP. While most believe aftermarket retailers sell cheap parts with no warranty or customer support, HHP is here to kick that stereotype to the curb. HHP sells Oil Pumps designed to surpass OE tolerances, with a 1-Year Parts and Labor Warranty, all at up to 50% off OEM prices. Top it off with support from HHP’s certified techs and service writers, and you've got the recipe for quality diesel repair, all the way from diagnosis to delivery. So, how's that for an aftermarket part?

Need proof? Let's talk Oil Pumps.

  • Our Cummins Oil Pumps are built to OEM specifications, giving you proper fit and function.
  • We supply high quality pumps that are lean manufactured for continuous product improvement in an ISO 9001: 2015 certified facility.
  • To ensure high accuracy and reliability, our products are carefully engineered and thoroughly tested.
  • A new pump will help extend the life of high-wear engine parts and maximize your engine.
  • Built with top of the line hard wearing materials for long lasting strength and durability.


  • (1) Oil Pump


1-Year Parts Warranty

OEM Applications

  • 4003950
  • 3803330
  • 3883910
  • 3401186
  • 3803379
  • 3895756

Technical Data

5L x 4W x 4H

L10 Engine Specifications:
Year: 1985-1990
Liter: 10.0
CID: 611
Cylinder: L 6
Compression Ratio:16.3:1
Firing Order:1-5-3-6-2-4

Tune-Up Specifications:
Oil Pressure At Idle:10 Psi Minimum
Oil Pressure: 30 Psi @ 1200 RPM or Peak Torque
Intake Valve Lash:.014" COLD
Exhaust Valve Lash:.027" COLD

L10 Engine Specifications:
Year: 1991-1996
VIN 91->
Liter: 10.0
CID: 611
Cylinder: L 6
Compression Ratio:-
Firing Order:1-5-3-6-2-4

Tune-Up Specifications:
Oil Pressure At Idle:10 Psi Minimum
Oil Pressure:30 Psi minimum @ 1200 or peak torque
Intake Valve Lash: .014" Cold
Exhaust Valve Lash: .027" Cold

M11 Engine Specifications:
Year: 1991-2001
Liter: 11.0
CID: 661
Cylinder: L 6
Bore/Stroke: 4.9213-4.9250",5.790"
Compression Ratio: -
Firing Order:1-5-3-6-2-4

Tune-Up Specifications:
Oil Pressure At Idle:10 PSI
Oil Pressure: 30 PSI MIN @ 1200 RPM
Intake Valve Lash: .014" COLD
Exhaust Valve Lash:.027" COLD



  • P022377
  • P022377
  • IMB
  • New

Shipping Information

  • Item Requires Shipping
  • 8.7 lbs.
  • W4.0000” x H5.0000” x L6.0000”

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.