Engineered for 2005–2018 and 2021–2024 Dodge Ram 2500 and 3500 diesel trucks powered by the 5.9L Common Rail or 6.7L Cummins engine, the FASS Titanium Signature Series Fuel Air Separation System (TSD07165G) provides the ultimate continuous low-pressure fuel supply to high-pressure injection pumps. Modified street performance, heavy towing, and competition applications generating between 600 and 900 horsepower quickly exceed the capacity of factory fuel systems, leading to severe pressure drops and cavitation that starve Bosch CP3 or CP4.2 high-pressure pumps. The TSD07165G guarantees positive supply pressure under wide-open throttle.

This standalone lift pump system includes two FASS BHF-1005 6061-T6 billet aluminum bulkhead and PTFE suction tube assemblies, allowing clean plumbing directly through the factory fuel tank module without cutting the filler neck. As diesel fuel passes through the Titanium housing, FASS Whisper Technology (FWT) and Performance Radius Cuts (PRC) optimize fluid velocity while keeping electric motor noise down to a whisper. Operating alongside the Mass Flow Return (MFR) system, the pump continuously scrubs the fuel charge—removing over 99% of entrained water, eliminating air and vapor bubbles, and trapping abrasive particulate down to 2 microns absolute.

Key Features & Benefits

• Supports 600–900 Horsepower: Delivers 165 gallons per hour of pure diesel fuel at a constant 16–18 PSI, providing ample volume for upgraded injectors, modified CP3 pumps, and compound turbo setups.
• 2-Micron Absolute Particulate Filtration: Captures fine contaminants down to 2 microns absolute, significantly extending the service life of high-pressure common rail injection pumps and injectors.
• Over 99% Water Separation: High-efficiency water separator stops both free and emulsified moisture from reaching sensitive high-pressure rail components.
• Patented Air & Vapor Separation: FASS Mass Flow Return continuously deaerates fuel, increasing lubricity by at least 10% to prevent component galling, quiet engine operation, and stabilize idle.
• FASS Whisper Technology (FWT): Precision gear machining, tighter acoustic tolerances, and specialized internal coatings drastically lower operating motor decibels compared to earlier aftermarket pumps.
• Performance Radius Cuts (PRC): Eliminates sharp 90-degree internal edges to prevent flow turbulence, vapor pocketing, and fuel cavitation.
• Bolt-On Steel Mounting Brackets: Heavy-duty machined steel bracketry bolts directly to factory truck bed/frame bolt locations without requiring frame drilling or welding.

Technical Specifications

• Manufacturer Part Number / SKU: TSD07165G (Titanium Signature Series)
• Truck Platform: 2005–2009 (3rd Gen), 2010–2018 (4th Gen), & 2021–2024 Ram Heavy Duty 2500 / 3500
• Engine Platform: 2005–2007 5.9L 24V Common Rail & 2007.5–2018 / 2021–2024 6.7L 24V Cummins
• Flow Rating: 165 Gallons Per Hour (GPH)
• Operating Pressure: Preset to 16–18 PSI (Diesel Common Rail Spec)
• Horsepower Rating: Recommended for 600 HP to 900 HP Applications
• Filtration Rating: 2-Micron Absolute Particulate Filter & High-Efficiency Water Separator
• Suction Hardware: Includes BHF-1005 Billet Aluminum Bulkhead & PTFE Suction Tube Kit
• Fuel Line Size: 1/2-Inch High-Flow Fuel Line
• Motor Life Expectancy: 1,000,000+ Miles
• Warranty: FASS Limited Lifetime Warranty (with completed product registration)

Vehicle Fitment & Installation Notes

• 2005–2007 Dodge Ram 2500 / 3500 – 5.9L 24V Common Rail Cummins
• 2007.5–2009 Dodge Ram 2500 / 3500 – 6.7L 24V Cummins Turbo Diesel
• 2010–2018 Ram 2500 / 3500 – 6.7L 24V Cummins Turbo Diesel
• 2021–2024 Ram 2500 / 3500 – 6.7L 24V Cummins Turbo Diesel
• Fitment Notice: Standalone system that utilizes the included bulkhead and suction tube kit (requires dropping the fuel tank or lifting the bed to access the factory fuel basket). Does not fit 2019–2020 Ram trucks without custom plumbing due to factory low-pressure line variations (use TSD12165G for 19–20). Cab & Chassis models may require custom bracket mounting.
• Installation Tip: Trim the included PTFE Teflon suction tube so it sits approximately 1/8" to 1/4" off the bottom of the fuel tank module; this prevents the tube from sealing against the floor of the tank while allowing safe operation below 1/8 tank.