Engineered specifically for 2011 through 2016 Ford F-250, F-350, F-450, and F-550 Super Duty trucks equipped with the 6.7L Powerstroke turbo diesel engine, the Sinister Diesel Coolant Filtration Bypass System (SD-CF-6.7P-11) traps abrasive particulate contamination before it can destroy critical cooling components. Even modern diesel cooling loops carry residual casting sand, metal particulate, and chemical scale that circulate continuously through the block.

Left unfiltered, these suspended abrasives scour water pump impellers and mechanical seals, cause premature shaft leaks, and clog the narrow passages of the primary engine oil cooler and secondary EGR cooling circuits. The Sinister Diesel bypass kit continuously routes a targeted fraction of pressurized coolant through a dedicated high-capacity spin-on filter element. By filtering small amounts continuously while the engine runs, it gradually cleans the entire cooling volume without impeding engine operating temperatures or core coolant flow.

Key Features & Benefits

• Removes Harmful Particulate: Traps residual casting sand, metallic debris, and rust scale to significantly extend the life of your water pump, oil cooler, and heater core.
• Billet 6061 Aluminum Filter Boss: CNC-machined from solid billet aluminum and finished in signature anodized Sinister Blue for lasting corrosion resistance and under-hood styling.
• Pre-Assembled Silicone Hoses: Tough, reinforced silicone hoses resist heat and cracking, pressure-tested to twice the rating of the factory radiator cap.
• No-Drill Factory Bolt-On Fitment: Mounts cleanly to existing factory mounting holes using the supplied powder-coated steel bracket.
• Simple Spin-On Maintenance: Standardized filter thread accommodates readily available spin-on replacement filters from Caterpillar, Baldwin, and Wix.

Technical Specifications

• Manufacturer Part Number / SKU: SD-CF-6.7P-11 / SIN-SD-CF-6.7P-11
• Filter Head Construction: CNC-Machined 6061-T6 Billet Aluminum (Anodized Sinister Blue)
• Mounting Bracket: Precision Laser-Cut, Powder-Coated Engine Bay Steel Bracket
• Hose Material: Pre-Formed Multi-Ply Reinforced Silicone with Quick-Tap Fittings
• Included Filter Element: Spin-On High-Efficiency Bypass Filter (Wix / CAT Style)
• Truck Platform: 2011–2016 Ford Super Duty F-250, F-350, F-450, F-550
• Engine Platform: 6.7L Powerstroke V8 Turbo Diesel
• Core Requirement: None
• Warranty: Sinister Diesel Limited Manufacturer Warranty

Vehicle Fitment & Service Interval Notes

• 2011–2016 Ford F-250 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2011–2016 Ford F-350 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2011–2016 Ford F-450 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2011–2016 Ford F-550 Super Duty – 6.7L Powerstroke Turbo Diesel
• Fits Model Years: 2011, 2012, 2013, 2014, 2015, 2016
• Fitment Notice: Engineered strictly for 2011–2016 6.7L Powerstroke trucks. For 2017–2019 applications, order SKU SD-CF-6.7P-17; for 2020–2022 applications, order SKU SD-CF-6.7P-20.
• Recommended Filter Change Schedule:
  • 1st Filter Change: 500 Miles after initial installation
  • 2nd Filter Change: 3,000 Miles
  • 3rd Filter Change: 3,000 Miles
  • Subsequent Changes: Annually or every 15,000 miles thereafter