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3S-9643 | Caterpillar 3406A/B/C/E Regulator Seal

Pricing: $5.93

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When it comes to Regulator 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 Regulator 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 Regulator Seal that will keep you running for another million miles.

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

  • Sleep soundly knowing this regulator seal is manufactured and assembled in an ISO 9001:2008 certified facility, giving quality and consistency that your rig demands.
  • This regulator seal is built to strict OEM specifications ensuring proper engine fitment and function.
  • You are never overpaying with HHP! This seal is equal or better than the OE at a much lower price.


  • (1) Regulator Seal


2 Year Parts and Labor Warranty

Warranty acceptance/denial will be at the sole discreation of each respected manufacturer. Each of HHP's manufacturers utilizes their own warranty procedures which vary in claim review time (typically between 3-5 weeks). On items that carry a labor warranty, rates are paid on flat-rate book time. Rates vary by manufacturer.

OEM Applications:
  • 3S-9643
  • 3S9643
  • 4L-8098
  • 4L8098

Technical Data

Fits Engine Models:



Shipping Information

  • Item Requires Shipping
  • 0.0 lbs.
  • W4.0000” x H0.2500” x L4.0000”

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