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SKU: A7SABC514 / UPC: 813094010141
PureFlow AirDog II-5G DF-220-5G Fuel Air Separation System for 2011-2014 Chevrolet Silverado and GMC Sierra 6.6L Duramax Diesel
The PureFlow AirDog II-5G DF-220-5G, a high-capacity diesel lift pump that delivers 220 gallons per hour of clean, air-free fuel directly to your 6.6L LML Duramax engine. This system outperforms stock pumps and competing options by separating 100% of air and up to 92% of water from the fuel before it reaches the injectors, ensuring steady pressure even under heavy loads or high-horsepower demands exceeding 1000 HP. Drivers report noticeable gains in throttle response, reduced injector wear, and fewer fuel-related issues compared to factory setups or basic filtration kits, making it the reliable pick for daily towing, racing, or tuned performance trucks.
Exact Vehicle Fitment
- Years: 2011-2014
- Makes and Models: Chevrolet Silverado 2500HD, 3500HD; GMC Sierra 2500HD, 3500HD
- Engine: 6.6L Duramax LML Diesel (Cab & Chassis models included)
Notes: Direct bolt-on installation using factory frame standoff, no modifications to the CP4 high-pressure pump required. Compatible with DEF systems and emissions equipment.
What's Included in This Complete Kit (Part Number: DF-220-5G / SKU: A7SABC514 / UPC: 813094010141)
This all-in-one package provides everything needed for a straightforward frame-rail mount, including:
- 1 x AirDog II-5G DF-220 Main Unit (gerotor pump with built-in 2-micron absolute fuel filter and water separator)
- 1 x Mounting Bracket Assembly (cradle-style with frame clamps and hardware kit: bolts, lock washers, nuts, spacer)
- 1 x Wiring Harness (relay, 20A fuse, trigger wire, battery leads with 2-pin Metri-Pack connector)
- 1 x 5/8" High-Flow Suction Tube (draw straw with bulkhead fitting for tank installation)
- 21 feet of High-Pressure Fuel Line (14 ft standard 1/2" HS14 + 7 ft 5/8" HS587 for suction)
- 4 x Quick-Connect Fittings (3 x 1/2" straight hose ends + 1 x 3/8" 90-degree return fitting)
- 3 x J2044 Quick-Connect Adapters (1/2" male to 3/4-16 UNF for engine feed; 3/8" male to 7/16 UNF for return)
- 2 x -10 JIC to 5/8" Barb Fittings (for suction line connections)
- 2 x 3/4-16 ORB Male to -10 JIC Female Fittings (for inlet and tube bulkhead)
- Bundle of Plastic Zip Ties (for securing lines and components)
- O-Ring Replacement Kit (for maintenance)
- Installation Hardware and Instructions (torque specs included: e.g., 180 in-lb for feed port, 84 in-lb for return)
Key Specifications and Performance Details
- Flow Rate: 220 GPH – Handles extreme modifications and maintains 8-10 PSI stock pressure (adjustable up to 55 PSI via diaphragm regulator for custom tuning)
- Filtration: 2-micron fuel filter (replace every 15,000-20,000 miles) water separator drains via bottom valve
- Connections: 5/8" suction tube to tank, 1/2" pressure line to frame rail; 3/8" air/vapor return via modified factory module
- Part Weight: 27 lbs
- Shipping Box Dimensions: 19.10" Depth x 13.20" Width x 7.90" Height
- Power Draw: 12V DC, self-priming design with intermediate shaft for quiet operation
- Warranty: 2-year unlimited mile coverage.
Mount this system in under 4 hours using basic tools drop the tank for the suction tube, route lines along the frame, and wire to the battery or alternator. It eliminates cavitation and vapor lock common in Duramax trucks, delivering cooler, denser fuel for longer engine life and consistent power output that beats out inline filters or lesser pumps. Order the PureFlow AirDog II-5G DF-220-5G today for your 2011-2014 Duramax and experience the difference in every drive.
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