AirDog II 5G Lift Pump, 220 GPH | 2011 to 2014 Chevy and GMC Duramax LML | DF-220-5G
Part#:
Description
The AirDog II 5G DF-220-5G is a 220 GPH lift pump with a water separator, fuel filter and air separation in one unit for the 2011 to 2014 Chevy and GMC Duramax LML. The LML uses the CP4.2, a pump that does not tolerate air, water or low supply pressure. Clean fuel at steady pressure is the cheapest insurance you can buy for it.
- Fits: 2011 to 2014 Chevy Silverado and GMC Sierra 2500HD and 3500HD with the 6.6L LML Duramax
- Part number: A7SABC514 (DF-220-5G)
- Flow: 220 GPH, for built trucks past 1,000 hp
- Filtration: water separator plus a 2 micron fuel filter
- Pressure: built in diaphragm regulator, preset at the factory and adjustable
- Emissions: CARB EO D-595-5
- Made in: Shelbyville, Indiana
What It Does
A factory lift pump moves fuel. It does not pull out air, vapor or water. Air in the fuel disrupts the injector spray pattern and timing, and water is the fastest way to kill a high pressure pump. The AirDog II 5G runs fuel through the water separator, then a gerotor pump, then the fuel filter, where entrained air and vapor are separated and sent back to the tank.
It is a demand flow design: fuel the engine does not use is recirculated inside the filter base instead of being dumped back to the tank, and the air return uses a small low flow line so the fuel going back is not aerated. The 5G update added a 4 bearing motor with an intermediate shaft for longer life and less noise, larger 3/4 inch O ring ports, a dual feed into both sides of the gerotor to cut cavitation, a 12 gauge harness from the battery to the motor and sealed Weather Pack connectors.
How It Installs on Your Truck
The pump mounts to the factory frame standoff in front of the fuel tank with AirDog's cradle bracket. Fuel is pulled through a 5/8 inch draw straw installed in the tank, which gives the larger pump the supply it needs. The pressure side plugs into the factory feed line on the frame that supplies the injection pump, using OEM style quick connects. Once the module is modified, the air and vapor return goes back to the tank through the factory 12mm line. The kit includes the pump and filter assembly, mounting hardware, wiring harness with relay, fuel lines, fittings and the install manual. No tuning is needed.
Which Flow Rate Do You Need?
AirDog's own sizing: 100 GPH units for up to 500 hp, 150 and 165 GPH units for up to 1,000 hp, and the 200 and 220 GPH units past that. A bigger pump will not hurt a stock truck, since the fuel the engine does not use is recirculated.
Other flow rates for this truck: AirDog 4G FP-100-4G (100 GPH), AirDog II 5G DF-100-5G (100 GPH), AirDog 4G FP-150-4G (150 GPH), AirDog II 5G DF-165-5G (165 GPH).
Filters and Maintenance
The fuel filter and water separator are standard spin on cans. AirDog's replacements are the FF100-2 fuel filter (2 micron) or FF100-10 (10 micron, better for cold weather) and the WS100 water separator. You can add spare filters right above the Add to Cart button. Cross references for the standard height cans:
- Wix: 33420 fuel filter, 33616 water separator
- NAPA: 3420 fuel filter, 3616 water separator
- Baldwin: BF7531 fuel filter, BF1275 water separator
- Fleetguard: FF5613 fuel filter, FS19594 water separator
Not sure which AirDog fits your truck or your power level? Send us your VIN and mods, or call 865 640 2097 and talk to a tech who works on these trucks every day. Comparing brands? Read our FASS vs AirDog lift pump guide.
