Click on image to zoom

3901178 | Cummins C-Series Valve Seal

Pricing: $2.37

Customize Your Item



When it comes to Valve Seals, 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 Camshaft Bushings 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 Camshaft Bushing that will keep you running for another million miles. 

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

  • Want a brand new valve seal? 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) Valve Seal


1-Year Warranty

OEM Applications:

  • 3904579
  • 3904578
  • K3927642
  • 3901178
  • 3915707

Technical Data

6CT 8.3

6 Cylinder
Bore: 4.49 in / 114 mm
Stroke: 5.32 in / 135 mm

Piston (m):


  • P206421
  • P206421
  • HHP
  • New


Shipping Information

  • Item Requires Shipping
  • 0.0 lbs.

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.