Engineered specifically for 2017 through 2019 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 Bypass Coolant Filtration System (SD-CF-6.7P-17) actively extracts abrasive suspended solids before they can compromise critical engine cooling circuits. Even with modern manufacturing processes, diesel blocks retain residual casting sand, metal shavings, and chemical scaling that stay in suspension throughout the cooling jackets.

Left unfiltered, these contaminants act as a grinding compound on mechanical water pump seals, causing early pump failures, and accumulate in the narrow heat-transfer passages of the engine oil cooler and secondary EGR cooling loop. The Sinister Diesel bypass design continuously bleeds off a metered stream of pressurized coolant, routes it through an included heavy-duty Caterpillar filter element, and returns clean fluid to the reservoir without disrupting core operating temperatures or restricting cooling system volume.

Key Features & Benefits

• High-Efficiency CAT Filter Protection: Includes an authentic Caterpillar spin-on filter element engineered to trap microscopic abrasive debris, casting sand, and scale.
• Billet 6061-T6 Aluminum Filter Base: CNC-machined from solid billet aluminum and finished in signature Sinister Blue anodizing for lasting under-hood corrosion resistance.
• Pre-Assembled Dual-Rated Silicone Hoses: Multi-ply reinforced silicone hoses resist heat fatigue, pressure surges, and cracking, factory tested at twice normal radiator cap pressure.
• 100% Bolt-On No-Drill Installation: Sturdy, custom-engineered mounting bracket secures directly into existing factory holes under the hood.
• Extends Vital Component Longevity: Protects expensive primary water pumps, cabin heater cores, and delicate liquid-to-liquid oil coolers from abrasive damage.

Technical Specifications

• Manufacturer Part Number / SKU: SD-CF-6.7P-17 / SIN-SD-CF-6.7P-17
• Filter Head Material: CNC-Machined 6061-T6 Billet Aluminum (Anodized Sinister Blue)
• Mounting Bracket: Precision Laser-Cut Engine Bay Bracket (Powder-Coated Steel)
• Hose Construction: Pre-Formed Multi-Ply Reinforced Silicone with Quick-Tap Brass/Billet Fittings
• Supplied Filter Element: Caterpillar High-Efficiency Spin-On Coolant Filter (CAT 226-6565 / Standard 11/16"-16 Thread)
• Truck Platform: 2017–2019 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

• 2017–2019 Ford F-250 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2017–2019 Ford F-350 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2017–2019 Ford F-450 Super Duty – 6.7L Powerstroke Turbo Diesel
• 2017–2019 Ford F-550 Super Duty – 6.7L Powerstroke Turbo Diesel
• Fits Model Years: 2017, 2018, 2019
• Fitment Notice: Engineered specifically for the redesigned engine bay layout and cooling lines of 2017–2019 trucks. For 2011–2016 models, order SKU SD-CF-6.7P-11; for 2020–2022 models, order SKU SD-CF-6.7P-20.
• Recommended Filter Change Schedule:
  • 1st Filter Replacement: 500 Miles after initial installation
  • 2nd Filter Replacement: 3,000 Miles
  • 3rd Filter Replacement: 3,000 Miles
  • Subsequent Replacements: Annually or every 15,000 miles thereafter