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3920780 | Cummins 4B/6B Bolt

Pricing: $4.98

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When it comes to Bolts, 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 Bolts 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 Bolt that will keep you running for another million miles.

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

  • Replace your worn out bolt with a brand new one built to OEM specifications.
  • A brand new bolt will keep your engine secure to help you go a million more miles!
  • We ensure you'll receive quality because this part is manufactured and assembled in an ISO 9001: 2008 certified facility.
  • To top it off, you don't have to overpay for a bolt. At HHP you'll get equal or better quality compared to the OEM at a much lower price.


  • (1) Bolt


2-Year Parts and Labor Warranty
OEM Applications:
  • 3901220
  • 3903939
  • 3920780
  • CUM3920780
  • HE3920780
  • K3920780

Technical Data

For Model 4B - 10 are Required
For Model 6B - 14 are Required

For Both 2-Valve and Premium High Heat Marine Applications:M12x1.75x120

5L x .02W x.03H


  • P022503
  • P022503
  • HHP
  • New

Shipping Information

  • Item Requires Shipping
  • 0.2 lbs.
  • W4.0000” x H1.0000” x L7.0000”

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