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3900176 | Cummins B-Series Crankshaft with Gear, New

P204038, 3907803, CUM3908031, 3929036, 3908031, 3905617, 3903830, 3903827, 3863276, Cummins, Cummins B-Series, Crank, Crankshaft, Cummins Crank, Cummins B-Series, Cummins B-Series Crankshaft, Crankshaft, Crankshaft Cummins, Crankshaft Cummins B-Series, 4B, 4B Crank, 4B Crankshaft, Crank 4B, Crankshaft 4B, Cummins Crankshaft 4B

Availability: In Stock & Ready to Ship!
Pricing: $723.23

Customize Your Item



Don’t risk your your engine to some no-name, sub-par Crankshaft.

There’s no throwing a bandage on a bad crankshaft. In fact, trying to limp along is only going to cause more damage. Keep your rig running strong for another million miles- without emptying your pockets- with a Crankshaft from HHP.

Forget choosing between quality and price. HHP only offers premium aftermarket parts at up to 50% off OEM prices. While most believe aftermarket retailers sell cheap parts with zero warranty, HHP is here to kick that stereotype to the curb. HHP provides Crankshafts with no core charge and a 2-Year Parts and Labor Warranty. How’s that for an aftermarket part?

Need a little extra proof? Let's talk Crankshafts.

  • You'll get equal or better quality compared to the OEM at a much lower price! So don't let the cost of a crankshaft weigh you down.
  • Also manufactured and assembled in an ISO 9001: 2008 certified facility, ensuring quality and consistency! In other words, quality you can trust!
  • Built to OEM specifications to ensure proper engine fitment. So don't chance your old crankshaft, having a properly functioning crankshaft is essential for engine performance.
  • At HHP our ASE certified techs are here to help you get back up and running in no time.


  • (1) Crankshaft with Gear


2-Year Parts and Labor Warranty

OEM Applications

  • 3907803
  • CUM3908031
  • 3929036
  • 3908031
  • 3905617
  • 3903830
  • 3903827
  • 3863276

Technical Data

With Gear

Installation Tips

Make sure the crankshaft is properly cleaned before you lubricate it, or the lubrication will not be effective.


  • P204038
  • P204038
  • In Stock & Ready to Ship!
  • New

Shipping Information

  • Item Requires Shipping
  • 102.0 lbs.

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