Question 1

What makes AirDog different from FASS and other lift pump brands?

Accepted Answer

AirDog uses a patented dual-shaft design that eliminates the misalignment issues common in single-shaft competitors, resulting in quieter operation, reduced wear, and longer service life. AirDog systems have been made in the USA since 1990 and are known for high-quality components, durable fuel lines that resist hardening, and straightforward installation. AirDog also functions as a supplemental pump, meaning if the factory pump encounters issues, AirDog can maintain fuel delivery.

Question 2

Where are AirDog fuel systems made?

Accepted Answer

AirDog fuel air separation systems have been made in the USA since 1990. All systems are engineered and manufactured to heavy-duty standards for commercial and industrial diesel applications.

Question 3

What diesel engines are AirDog products compatible with?

Accepted Answer

AirDog products are compatible with Cummins, Duramax, and Powerstroke diesel engines across a wide range of model years, as well as universal applications for commercial trucks, agricultural equipment, mining, marine, RV, and off-highway diesel engines. Use the fitment guide on each product page to confirm compatibility with your specific engine.

Question 4

How does a fuel air separation system improve diesel performance?

Accepted Answer

Entrained air and vapor in diesel fuel are compressible, which causes injection timing delays, power loss, rough idle, increased fuel consumption, and accelerated injector wear. A fuel air separation system removes all air, vapor, and particulates before the fuel reaches the injection system, allowing the engine to operate at its designed efficiency with precise injection timing, maximum power, and optimal fuel economy.

Question 5

Can I install an AirDog system myself?

Accepted Answer

Yes. Every AirDog kit comes with all required fittings, fuel lines, mounting brackets, and a full-color installation manual specific to your truck. Most installations do not require drilling holes in the fuel tank and are designed to be completed by anyone comfortable with basic mechanical work. Installation manuals are also available on the AirDog website.

Question 6

How do I contact AirDog Diesel for support or sales?

Accepted Answer

You can reach AirDog Diesel by phone at 1-877-463-4373 or by email at sales@airdogdiesel.com. The team can help with product selection, fitment questions, installation support, and order inquiries.

Installation Manuals

INSTALLATION MANUALS FOR AIRDOG® FUEL SYSTEMS

SEARCH BELOW FOR YOUR ENGINE TYPE

AirDog® FPII HD

CATERPILLAR

CUMMINS

DETROIT

PACCAR

VOLVO & MACK 12 vOLT

VOLVO & MACK24 VOLT

UNIVERSAL APPLICATION

Champ™™

CUMMINS

DETROIT

PACCAR

Champ™ II™

CATERPILLAR

DETROIT

Accessories

CATERPILLAR FUEL SYSTEM UPGRADE KITS

CUMMINS FUEL LINE KIT

DETROIT FUEL SYSTEM UPGRADE KIT

HEATER KIT & HEATER WRAP KIT

*Compatible with all AirDog® Heavy Duty & Light Duty (Pickup Truck) Systems

From February 2nd-13th, 2026! Use Code FILTER26 for 20% Off your purchase plus free shipping on all orders over $200!

* Free shipping over $200 applies to lower 48 United States only

From 3/26/26 until 4/3/26! Use Code mATS26 at checkout for 20% Off your purchase plus free shipping on orders over $200!

INSTALLATION MANUALS FOR AIRDOG^® FUEL SYSTEMS

AirDog^® FPII HD

VOLVO & MACK
12 vOLT

VOLVO & MACK
24 VOLT

Champ^™^™

Champ^™ II^™