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4356366 | Cummins ISX/QSX Valve Stem Seal

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Pricing: $1.56

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When it comes to Valve Stem 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 Valve Stem Seals 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 Valve Stem Seal that will keep you running for another million miles.

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

  • You'll get quality because this seal is manufactured and assembled in an ISO 9001:2008 Certified facility.
  • This comes with both the seal and valve spring guide, giving you everything you need.
  • You'll get a valve stem seals built to OEM specifications and has same quality or better as the OEM at a much lower cost.
  • This part is brand new and eliminates seal "flutter" for improving oil control while also made for both intake and exhaust guides. It doesn't get better than that!


  • (1) Valve Stem Seal


2-Year Warranty

OEM Applications

  • 4026791
  • 4312008
  • 4356366

Technical Data

Valve Stem Seal - Intake & Exhaust. ESN 14010274 & up.
This engine requires a quantity of 24.
"Top Hat" style that has both seal and valve spring guide within the one component. Also eliminates seal "flutter" which also improves oil control. Made for both intake and exhaust guides.


Shipping Information

  • Item Requires Shipping
  • 0.1 lbs.
  • W4.0000” x H0.5000” x L4.0000”

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