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3954829 | Cummins B-Series Thermostat Seal

Pricing: $2.29


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

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

  • This brand new thermostat seal is manufactured and assembled in an ISO 9001:2008 certified facility. This ensures good quality and consistency.
  • Plus, you'll get quality that meets or exceeds the OE's at a much lower price. We put the OEM to shame!
  • To top it off, you'll sleep soundly knowing this seal is crafted to OE specifications, giving you proper fit and function.


  • (1) Thermostat Seal


2-Year Parts and Labor Warranty

OEM Applications:

  • 3954829

Technical Data

Fits Applications:


  • P023012
  • P023012
  • HHP
  • New


Shipping Information

  • Item Requires Shipping
  • 0.0 lbs.
  • W5.0000” x H0.2500” x L8.0000”

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