Engineered for 2004.5–2018 Dodge Ram 2500 and 3500 diesel trucks powered by the 5.9L Common Rail or 6.7L 24V Cummins engine, the PureFlow AirDog Raptor 4G 100 GPH Fuel Lift Pump (R4SBD050) provides an ideal fuel delivery solution for daily drivers, work trucks, and mild tow applications. The factory in-tank transfer pump frequently exhibits pressure drops under acceleration or sustained pulling loads, pulling suction vacuum across supply lines and starving the Bosch CP3 high-pressure injection pump. This low-pressure fuel deficit triggers low rail pressure trouble codes (P0087 and P1093) and accelerates internal pump wear; the Raptor 4G resolves this by maintaining continuous positive feed pressure directly to the engine-mounted filter canister.

Operating at a steady 100 gallons per hour, the RP-4G-100 system features an internal diaphragm-style pressure regulator adjustable from 7 to 70 PSI (factory preset to 15–17 PSI). Because it regulates pressure internally, no separate return line back to the fuel tank is required. The pump assembly utilizes PureFlow’s quiet 4-bearing electric motor technology to minimize operating noise and chassis vibration. It mounts securely along the truck frame rail with a drill-free sandwich bracket system, drawing fuel through an included Fuel Module Upgrade Kit (1/2" bulkhead fitting) that completely bypasses the restrictive OEM in-tank lift pump.

Key Features & Benefits

• Consistent 100 GPH Flow Delivery: Supplies an uninterrupted 100 gallons per hour to maintain positive fuel pressure, eliminating P0087 and P1093 codes on stock to mildly tuned engines up to 500 HP.
• Internally Regulated (No Return Line Required): Built-in adjustable diaphragm regulator (7–70 PSI, preset to 15–17 PSI) circulates excess fuel internally, eliminating the need to cut into filler necks or route external return lines.
• Quiet 4-Bearing Motor Technology: 4G intermediate-shaft motor reduces friction and operating temperatures, delivering whisper-quiet cab comfort and extended reliability.
• In-Tank Fuel Module Upgrade Kit: Includes an in-tank suction tube and 1/2-inch bulkhead fitting to cleanly bypass the failure-prone factory in-tank pump.
• Direct Plumb to Factory Filter Canister: Routes fuel directly into the OEM engine-mounted filter housing, allowing owners to retain factory filtration without the added expense of auxiliary spin-on filters.
• Drill-Free Sandwich Plate Frame Mount: Clamps firmly around the truck frame rail with standard hand tools, requiring no drilling or frame modifications.
• Complete Installation Kit: Supplied with a relay control wiring harness, 1/2-inch high-flow fuel lines, OEM-style quick-connect fittings, and all necessary mounting hardware.

Technical Specifications

• Manufacturer Part Number / SKU: R4SBD050 (RP-4G-100 / Raptor Series)
• Truck Platform: 2004.5–2009 (3rd Gen) & 2010–2018 (4th Gen) Ram Heavy Duty 2500 / 3500
• Engine Platform: 2004.5–2007 5.9L Common Rail & 2007.5–2018 6.7L 24V Cummins Turbo Diesel
• Flow Rating: 100 Gallons Per Hour (GPH)
• Operating Pressure: Mechanically Adjustable from 7 to 70 PSI (Factory Preset to 15–17 PSI)
• Regulator Type: Internal Bypass Diaphragm Pressure Regulator
• Horsepower Rating: Recommended for Stock to 500 HP Applications
• Suction Hardware: Fuel Module Upgrade Kit with 1/2" Bulkhead Fitting
• Fuel Line Size: 1/2-Inch Fuel Line with Quick-Connect Fittings
• Motor Design: 4-Bearing Electric Motor with Intermediate Shaft
• Warranty: PureFlow AirDog Limited Lifetime Warranty (with completed product registration)

Vehicle Fitment & Installation Notes

• 2004.5–2007 Dodge Ram 2500 / 3500 – 5.9L 24V Common Rail Cummins (Engine Codes "ETH" 325 HP)
• 2007.5–2009 Dodge Ram 2500 / 3500 – 6.7L 24V Cummins Turbo Diesel
• 2010–2018 Ram 2500 / 3500 – 6.7L 24V Cummins Turbo Diesel
• Fits Model Years: 2004.5, 2005, 2006, 2007, 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
• Fitment Notice: Engineered for 2004.5–2018 trucks with factory in-tank lift pumps. Early 2004 and older 5.9L Cummins trucks equipped with engine-mounted canister lift pumps require part number R4SBD052. Does not fit 2019+ Ram chassis platforms.
• Installation Tip: Install the included Fuel Module Upgrade Kit into the factory fuel tank module basket; cut the suction tube at a 45-degree angle approximately 1/4" off the bottom of the basket to prevent low-fuel slosh starvation, and verify line pressure with a mechanical gauge before finalizing the regulator locknut.