Product Description
Upgrade your 2001–2010 GM Duramax 6.6L (LB7/LLY/LBZ) with the AIRDOG A7SABC509 II-5G DF-165-5G. This 165 GPH Air/Fuel Separation System delivers consistent fuel supply, removes entrained air/water/particulates, and helps protect expensive injectors for smoother idle, improved throttle response, and reliable performance under load.
Vehicle Fitment
- 2001–2004 GM 6.6L Duramax LB7
- 2004.5–2005 GM 6.6L Duramax LLY
- 2006–2007 GM 6.6L Duramax LBZ
Note: Designed for trucks within the applications above using OE-style quick-connect fuel lines.
Why Choose AirDog II-5G (DF-165-5G)
- High-flow 165 GPH gerotor pump with quiet operation
- Efficient air/vapor & water separation for cleaner fuel
- Stable, adjustable fuel pressure for tuned and towing builds
- Frame-rail mount with vehicle-specific plumbing and hardware
Cross-Reference / Alternatives (Airdog-only)
- AIRDOG A7SABC512 II-5G DF-220-5G – higher-flow 220 GPH option for big-power builds
- AIRDOG A7SPBC259 II-5G DF-100-5G – 100 GPH option for mild setups
- AIRDOG A4SPBC185 FP-100-4G – 4G system alternative
- AIRDOG A4SPBC188 FP-150-4G – 4G 150 GPH alternative
- AIRDOG R4SBC133 RAPTOR RP-4G-100 – Raptor pump alternative
Installation Instructions
Installation resources from AirDog (PureFlow):
- 2001–2010 Duramax — Installation Guide (AirDog / AirDog II Family)
- Video: II-5G DF-165/DF-100 on 2001–2010 Duramax (A7SABC509 & A7SPBC259)
- Browse more manuals: PureFlow AirDog Resources
What’s Included
- AirDog II-5G DF-165-5G pump & filter base
- Mounting bracket & hardware
- Vehicle-specific fuel lines & fittings
- Wiring harness, relay, and fuse
- Fuel filter & water separator (serviceable)
- Detailed installation instructions
Specifications for airdog A7SABC509
| Attribute | Value |
|---|---|
| Brand | AirDog (PureFlow) |
| Part Number | A7SABC509 |
| Flow Rate | 165 GPH |
| UPC | 813094016099 |
| GTIN | 00813094016099 |
| Engine Compatibility | GM 6.6L Duramax LB7 / LLY / LBZ (2001–2010) |
| Shipping Info | Ships via standard ground service; packaged for protection (weight/dimensions not specified by manufacturer) |
| Prop 65 Warning | Yes — www.P65Warnings.ca.gov |
FAQ
Will this work on my 2007 Classic (LBZ)?Yes. This DF-165-5G system is designed for 2001–2010 LB7/LLY/LBZ trucks with OE-style quick-connect fuel lines.
How does the II-5G improve reliability?
It removes entrained air and water and stabilizes fuel pressure, which helps protect injectors and the CP3 pump under load and towing.
Do I need tuning or a sump?
No tuning is required. A sump is optional; this kit includes the lines/fittings to run from the factory module and frame line. Follow the install guide linked above.
What maintenance is required?
Replace the fuel filter and water separator at the intervals recommended by AirDog or sooner if contaminated fuel is suspected.
