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3942565 | Cummins B-Series Tappet

Pricing: $11.76

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When it comes to Tappets, 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 Tappets 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 1-Year Warranty and technical expertise from HHP’s certified staff, and you’ve got a quality Tappet that will keep you running for another million miles. 

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

  • Want a brand new tappet? We've got you covered! This bad boy comes from an ISO 9001: 2015 certified facility. Ensuring the best of quality and consistency.
  • Plus, strict OE specifications are met, giving you proper fitment and functionality. You can't beat that!
  • Let's save you some hard earned cash. The price is a fraction of the cost of the OE's, while still matching OE quality or better.
  • If you have technical questions, we have answers. With ASE Certified techs on staff to help guide you through your repair, you'll be able to rest easy.


  • (1) Tappet


1-Year Warranty

OEM Applications

  • 3942565
  • 3942565


Technical Data

6BTA 5.9 ISB
24 Valve

6 Cylinder
359 Cubic Inch

Bore: 4.02 in / 102.108 mm
Stroke: 4.72 in / 119.888 mm

Piston (m):


  • P206500
  • P206500
  • MAX
  • New

Shipping Information

  • Item Requires Shipping
  • 0.2 lbs.

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