AIRDOG A4SPBC188 FP-150-4G AIR/FUEL SEPARATION SYSTEM FOR 2001–2010 GM DURAMAX 6.6L LB7 / LLY / LBZ / LMM

Product Description

Upgrade your 2001–2010 GM Duramax 6.6L with the AIRDOG A4SPBC188 FP-150-4G Air/Fuel Separation System (150 GPH). Designed to remove entrained air/vapor and particulates while maintaining steady low-pressure supply to the CP3, this 4G-generation kit uses a compact frame-rail mount, OE-style quick connects, and a proven gerotor pump for quiet, consistent performance.

Key Benefits

• Delivers 150 GPH steady fuel flow with pure, air-free diesel to the CP3
• Improves throttle response, reduces injector & pump wear, and supports tuned builds
• 4G motor technology with single-piece pump body for durability and low noise
• Complete kit: wiring harness, plumbing, brackets, and hardware for a clean install

Vehicle Fitment

• 2001–2010 Chevrolet Silverado 2500HD/3500HD – 6.6L Duramax (LB7, LLY, LBZ, LMM)
• 2001–2010 GMC Sierra 2500HD/3500HD – 6.6L Duramax (LB7, LLY, LBZ, LMM)

Engine codes covered: LB7 (2001–2004), LLY (2004.5–2005), LBZ (2006–early 2007), LMM (2007.5–2010).

Installation Instructions

Download the official AirDog FP-100/FP-150 (2001–2010 Duramax) install manual here: Airdog FP-100/150 2001–2010 Duramax Install Manual (PDF).

What’s Included

• AirDog I-4G pump assembly (150 GPH) with bracket & sandwich plate mount
• 1/2" fuel lines with OE-style quick connects, draw straw (where applicable)
• Relay-controlled wiring harness, hardware, and detailed instructions
• Fuel filter & water separator (serviceable)

Maintenance

Service fuel filter and water separator at the intervals recommended by Airdog or sooner in harsh conditions.

Specifications for airdog A4SPBC188