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P67 LoadLeash Engine Brake Kit

kit#: P55004 **Discontinued**

Application: 2014-2018 RAM Pick-Up & Chassis Cab 2500 / 3500 / 4500 / 5500 Trucks

Notes: The vehicle must have a VGT controlled by ECU. The Loadleash may be installed with ARP2000 studs (Part # 247-4202). If installed with ARP Custom 625 studs (Part # 247-4204), then Pacbrake Part #P55127 must be purchased. Important Note to all installers: Please ensure the vehicle meets all the prerequisites prior to ordering and installing the P-67 LoadLeash Engine brake. If you are uncertain, please call Pacbrake Customer Service, 800.663.0096

  • Standard Transmission
  • Lifetime Warranty


The only Engine Brake for ISB & PX-7 Diesel Engines

P67 LoadLeash Engine Brake Kit

PLEASE NOTE: This product has unfortunately been discontinued.

Quick & Controlled Braking For Heavy Duty Trucks Just Got Easier!

As the only true engine brake available for the class 3-5 truck market, Pacbrake's LoadLeash provides big-rig engine braking performance.

In addition to enhanced vehicle control & reduced brake fade, Pacbrake’s LoadLeash can extend service brake life by up to 500%.

  • Lightweight support housing replaces the factory valve cover spacer with no valve cover height increase.
  • Provides over 300 retarding horsepower.
  • Easily serviceable
  • One per brake assembly
  • Automotive grade wiring w/ abrasion protection
  • Precision cast aluminum valve cover spacer
  • IP67 rated controller housing
  • Forged heavy duty bridges
  • SAE & ISO rated fittings
  • Intelligent controller
  • SAE rated hose


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Technical Support

Please see the support documents to help you with your install. If you need more assistance, please call us at 800.663.0096 and speak with a customer service representative