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Sinister SD-COOLFIL-6.7C-W Coolant Filtration System 07.5-12 Cummins

Sinister SD-COOLFIL-6.7C-W Coolant Filtration System 07.5-12 Cummins

Regular price $186.99
Regular price Sale price $186.99
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The 6.7L Dodge Cummins Coolant Filtration System from Sinister Diesel is designed to extend the service life of your Dodge 2500 or 3500 diesel by filtering contaminants from the coolant while it circulates.

Even on the newest engines, the coolant of a 6.7L Cummins is contaminated with microscopic particles like casting sand leftover from the manufacturing process, metal shavings, rust, and mineral deposits that can diminish the heat capacity of your truck?s cooling system. Left inside the engine, these particles can even cause damage to your water pump bearings and the small passages inside your EGR cooler and oil cooler that require expensive repairs. With the Sinister Diesel Coolant Filtration System for the 6.7L Dodge Cummins, you can be sure your cooling system is working at maximum efficiency for a years to come.

This coolant bypass kit includes all mounts and fittings needed for installation and is machined from 6061 billet aluminum. The filter boss includes 2 threaded inlet ports and 1 outlet port. We recommend replacement of the first filter at 500 miles and replacement of the second and third filters after 3,000 miles each. After three filter changes, replacement can be done once a year. Like every Sinister Diesel part, the 6.7L Dodge Cummins Coolant Filtration System is manufactured and tested right here at Sinister?s California headquarters and comes with the legendary Sinister lifetime warranty.


  • CNC Machined Billet Aluminum Filter Block
  • Silicone Hoses
  • No drilling required: Mounting bracket installs into factory holes
  • Can be upgraded to Cat Coolant Filter


  • Genuine WIX Coolant Filter
  • Filter Block
  • Mounting Bracket
  • Pre-assembled silicone hose fittings
  • All necessary hardware for installation
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