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3901774 | Cummins B-Series Ring Gear

Pricing: $46.00

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When it comes to Ring Gears, why risk your engine?

Don?t let a small part turn into a major repair. We wouldn't risk putting sub-par parts into our engines, so why should you?

HHP only sells Ring Gears that are manufactured in a state of the art facility using top of the line machining and measuring equipment to ensure each part is manufactured to OEM specifications. Combine this with up to 50% off OEM prices, an industry leading 2-year warranty and technical expertise from HHP?s certified staff, and you?ve got a quality Ring Gear that will keep you running for another million miles.

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

  • This is a midrange gear with 159 teeth, and not to mention built with long lasting strength and durability!
  • You'll receive quality because this part is manufactured and assembled in an ISO 9001: 2008 certified facility.
  • Lastly, you'll get equal or better quality compared to the OEM at a much lower price!


  • (1) Ring Gear


2-Year Parts and Labor Warranty

OEM Applications:

  • CUM3901774
  • 3901774

Technical Data

Midrange Gear has 159 teeth


  • P022451
  • P022451
  • HHP
  • New

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W1.5000” x H9.2500” x L0.5000”

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