AIRDOG A4SPBC186 FP-100-4G AIR/FUEL SEPERATION SYSTEM FOR 11-14 GM DURAMAX 6.6L LML

Product Description

Airdog A4SPBC186 FP-100-4G is a 100 GPH Original AirDog system for the 2011–2014 Chevy/GMC Duramax 6.6L LML. It mounts on the frame jig in front of the fuel tank, draws fuel via the factory suction port in the module, feeds clean, de-aerated fuel to the CP4 injection pump, and returns separated air/vapor to the tank through a filler-neck tee—delivering steadier pressure and improved component life.

Vehicle Fitment

• 2011, 2012, 2013, 2014 Chevrolet Silverado/GMC Sierra 2500HD & 3500HD — 6.6L Duramax LML.

Key Features

• 100 GPH supply for stock–moderate builds
• Air/water/particulate separation for consistent injection pump feed
• Uses factory suction port; quick-connect pressure side to CP4
• Complete kit with bracketry, lines/fittings, filters, and wiring

What’s Included

Complete FP-100-4G assembly, cradle/frame brackets, wiring harness, hoses and quick-connect fittings, spin-on fuel and water separator filters, hardware (see install manual for full parts list).

Cross-Reference / Related Airdog Products (CPP Diesel)

• AIRDOG A4SPBC189 FP-150-4G (2011–2014 LML)
• AIRDOG A7SPBC260 II-5G DF-100-5G (2011–2014 LML)
• AIRDOG A4SPBC185 FP-100-4G (2001–2010 LB7/LLY/LBZ)
• AIRDOG A4SPBC190 FP-100-4G (2015–2016 LML)

Installation Instructions

• Airdog Resource Library (latest manuals)
• FP-100/FP-150 2011–2014 Duramax — Install Manual (PDF)

FAQs

Is 100 GPH enough for tuned LML trucks?

Yes—FP-100-4G supports typical street tunes, intake, and exhaust. If you plan larger injectors or heavy tuning, see the FP-150-4G or II-5G kits above.

Does this kit replace the factory low-pressure supply path?

It interfaces with the factory suction port and feeds the CP4 on the pressure side with clean, de-aerated fuel for more consistent supply.

Do I have to drop the tank?

No. The system mounts on the frame jig and uses the factory suction port; air/vapor is returned to the tank via a filler-neck tee per the manual.

What filters does it use and how often should I service them?

It uses AirDog spin-on fuel and water separator filters. Follow the intervals in the install manual and service more frequently in harsh conditions.

Specifications for airdog A4SPBC186