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3920691 | Cummins B-Series Piston Pin Retainer

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Availability: In Stock & Ready to Ship!
Pricing: $0.23

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When it comes to Piston Pin Retainers, 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 Piston Pin Retainers 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 Parts and Labor Warranty and technical expertise from HHP’s certified staff, and you’ve got a quality Piston Pin Retainer that will keep you running for another million miles.

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

  • You'll get proper fit and function when it comes to this piston pin retainer because its crafted to strict OEM specifications.
  • Want to have more cash on hand? You got it! You'll receive equal or better quality compared to the OE at a much lower price. You can't beat that!
  • To top it off, this piston pin retainer is manufactured and assembled in an ISO: 9001:2008 certified facility, this ensures excellent quality and consistency.


  • (1) Piston Pin Retainer


2-Year Parts and Labor Warranty

OEM Applications

  • 3284366
  • 3901706
  • 3920691
  • CUM3901706

Technical Data

Fits Applications:
For Model 4B - 8 are Required
For Model 6B - 12 are Required
For 2-Valve and 4-Valve Applications

Shipping Information

  • Item Requires Shipping
  • 0.0 lbs.
  • W4.0000” x H0.0000” x L3.0000”

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