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3S9643 | Caterpillar 3406/B/C/E, C12/C15/C15 Acert Coolant Regulator Seal

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Availability: In Stock & Ready to Ship!
Pricing: $5.56

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These aren't your grandpa's Coolant Regulator Seals.

A blown gasket can be anything from a minor annoyance to leaving you stranded on the side of the road. You don't have to put up with whatever seal you can get your hands on; our Coolant Regulator Seals are engineered to withstand anything you throw at it and last well into another million miles. No doubt about it, these are some of the best Coolant Regulator Seals on the market.

It's no secret that diesel engine parts can cost an arm and a leg. That's where HHP’steps in. We offer premium aftermarket Coolant Regulator Seals at up to 50% off OEM prices. While most believe aftermarket retailers sell cheap seals with zero warranty, packed in a dusty box from who knows where, HHP is here to kick that stereotype to the curb. HHP provides Coolant Regulator Seals fabricated for unstoppable performance and a 2-year warranty. How's that for an aftermarket part?


  • (1) Coolant Regulator Seal


2-Year Parts and Labor Warranty

OEM Applications

  • 3S-9643
  • 3S9643
  • 4L8098
  • 4L-8098


Shipping Information

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

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