Peterbilt Exhaust Flex Pipe Kit | Paccar M66-9393-0320 | FleetRun FR-EXST647


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Part Number

  • FleetRun: FR-EXST647

Cross Reference Part Number

  • Exhaust Bellows Pipe - Paccar: M66-9393-0320 / M66-7091-0320
  • Inlet Gasket - Paccar: 1844896PE / 2866636
  • Inlet Clamp - Paccar: 90-0012
  • Outlet Gasket - Paccar: 1844896PE / 2866636
  • Outlet Clamp - Paccar: 90-0012
  • Automann: 820.B75320P


  • Exhaust Bellows Inlet Diameter: 4.00 in.
  • Exhaust Bellows Length: 11.375 in.
  • Flanged
  • True Three Layered Bellows 
  • Inlet Gasket Inside Diameter: 3.75 in.
  • Inlet Gasket Outside Diameter: 4.625 in.
  • Inlet Clamp Inside Diameter: 4.75 in.
  • Outlet Gasket Inside Dimeter: 3.75 in.
  • Outlet Gasket Outside Dimeter: 4.625 in.
  • Outlet Clamp Inside Diameter: 4.75 in.

Please note: this is an aftermarket part, the use of other manufacturer's names, part numbers or trademarks is for informational purposes only.

Please verify OEM part numbers before purchasing, FleetRun assumes no liability related to product use and fitment.

  • 1 - Exhaust Bellows Pipe | Paccar M66-9393-0320 / M66-7091-0320 | FleetRun FR-EXST235
  • 1 - Exhaust Gasket | Paccar: 1844896PE / 2866636 | FleetRun FR-EXST378
  • 1 - V-Band Clamp | Paccar 90-0012 | FleetRun FR-EXST600
  • 1 - Exhaust Gasket | Paccar: 1844896PE / 2866636 | FleetRun FR-EXST378
  • 1 - Outlet Clamp | Paccar 90-0012 | FleetRun FR-EXST600

Peterbilt Exhaust Flex Pipe Kit | Paccar M66-9393-0320

Revive Your Exhaust System with the Peterbilt Exhaust Flex Pipe Kit!

Is your commercial vehicle's exhaust system in need of a breath of fresh air? Look no further than our top-of-the-line Peterbilt Exhaust Flex Pipe Kit, your solution to exhaust efficiency and performance.

Why Choose Our Exhaust Flex Pipe Kit?

Revitalizes Your Exhaust System: Our Exhaust Bellows Pipe Kit, part number M66-9393-0320, is engineered to rejuvenate your commercial vehicle's exhaust system. Say goodbye to leaks and keep your rig running efficiently.

Unmatched Quality: Crafted to meet the rigorous demands of the trucking industry, our Peterbilt Exhaust Flex Pipe Kit strives for OEM specifications, ensuring durability, reliability, and superior performance. Trust in the quality that keeps your heavy-duty truck on the road.

Seamless Compatibility: Specifically designed for Kenworth and Peterbilt models, this kit provides a perfect fit for your commercial vehicle. Keep your rig performing at its best with our expertly crafted flex pipe kit.

Enhanced Exhaust Efficiency: Maximize your exhaust system's efficiency and prevent leaks with our Peterbilt Exhaust Flex Pipe Kit. It's the key to maintaining consistent performance, ensuring your engine operates flawlessly even during demanding hauls.

Experience the FleetRun Difference

Elevate your exhaust system with FleetRun's Peterbilt Exhaust Flex Pipe Kit. Enjoy improved exhaust efficiency, extended system life, and enhanced overall reliability for your commercial vehicle.

With our goal to delivering OEM quality at aftermarket prices, you can trust our Exhaust Bellows Pipe Kit to provide reliable, long-lasting performance that adds value to your heavy-duty truck.

Upgrade your exhaust system today and enjoy FREE SHIPPING on your order. Experience the difference that superior quality and performance can make on the road.

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