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3906208 | Cummins 4B/6B 1.0mm Piston

Pricing: $36.32

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Think you know the truth about Pistons? We'd bet you'd be surprised.

It?s no secret, rebuilding your rig is one of the most labor (and wallet) intensive repairs out there. Sure, you want your engine to last another million miles but you also want the best price; so what should you choose- OEM or Aftermarket?

When it comes to engine parts, the aftermarket often gets a bad rep. The idea that aftermarket retailers sell cheap parts with zero warranty, delivered in a beat-up box written in another language couldn?t be further from the truth. HHP is here to set the record straight; we only sell new Pistons. On top of only offering premium quality parts, we also make sure you save up to 50% off OEM prices. So, when it comes to your Pistons, what?s left to want?

Need a little extra proof? Let?s talk Pistons.

  • Trust the experts with a piston manufactured and assembled in an ISO 9001:2008 certified facility. You'll get quality and consistency you can count on.
  • With a piston from HHP you'll get equal or better quality compared to the OEM all at a much lower price. Think twice before overpaying.
  • Each piston is also built to OEM specifications to ensure proper fitment!


  • (1) 1.0mm Piston


2-Year Parts and Labor Warranty

OEM Applications:

  • 3906208
  • CUM3906208
  • 3802064

Technical Data

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


  • P022538
  • P022538
  • HHP
  • New

Shipping Information

  • Item Requires Shipping
  • 4.0 lbs.
  • W5.5000” x H5.5000” x L6.0000”

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