AIRDOG A7SPBD354 II-5G DF-100-5G AIR/FUEL SEPARATION SYSTEM WITH IN-TANK FUEL PUMP FOR 1998.5–2004 CUMMINS 5.9L 24V

Product Description

Upgrade your 24-valve Cummins fuel system with the AirDog II-5G DF-100 (100 GPH) kit engineered specifically for 1998.5–2004 Dodge Ram 2500/3500 5.9L (VP44 and early CP3). The in-tank retrofit draws clean, de-aerated fuel through a 2-micron filter, removes water/air, and delivers steady pressure right to the injection pump for crisper throttle response, smoother idle, and better reliability.

• 100 GPH lift pump ideal for stock to mildly modified trucks
• Frame-rail sandwich-plate mount with complete wiring & plumbing
• Fuel Module Upgrade integrates into the factory basket for reliable in-tank pickup
• Bypasses factory filter housing for consistent, clean supply to the VP44 / early CP3
• Water separator + 2-micron final filtration and air/vapor return

Vehicle Fitment

• 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24V (VP44)
• 2003–2004 Dodge Ram 2500/3500 5.9L Cummins 24V (early CP3)

Installation Instructions

Find Airdog installation resources here: PureFlow AirDog Resources.
Direct PDF for this application (DF-100/165 with in-tank, 1998.5–2004 Cummins): Download PDF.

Cross-Reference / Alternatives (Airdog only)

• AirDog A7SPBD253 II-5G DF-100 (No In-Tank Pump) 1998.5–2004 Cummins
• AirDog A7SABD525 II-5G DF-165 1998.5–2004 Cummins
• AirDog A7SABD528 II-5G DF-220 1998.5–2004 Cummins
• AirDog A7SPBD254 II-5G DF-100 2004.5–2018 Cummins 5.9L/6.7L
• AirDog A7SPBD252 II-5G DF-100 1994–1998 Cummins 12V

Why Buy From CPP Diesel

• Second-Gen Cummins specialists with proven tech support
• Fast shipping and diesel-focused customer service
• Curated parts that actually fit and perform

FAQ

Does this kit work with my factory in-tank module?
Yes — this DF-100 “with in-tank” kit includes the Fuel Module Upgrade that integrates with the OEM basket to ensure reliable pickup and proper return routing.

Is 100 GPH enough for my setup?
For stock and mildly modified VP44/early CP3 trucks, 100 GPH is ideal. If you plan larger injectors or aggressive fueling/tuning, consider the DF-165 or DF-220 listed above.

Do I bypass the factory fuel filter canister?
Yes. This system supplies clean, de-aerated, 2-micron-filtered fuel directly to the injection pump, eliminating the restrictive factory housing.

What pressure does the pump run?
The II-5G platform maintains steady, regulated pressure to the VP44/CP3; follow the included installation manual for pressure specs and adjustment.

Will this help VP44 longevity?
Delivering air-free fuel at stable pressure reduces cavitation and starvation events that can harm VP44 internals.

Specifications for airdog A7SPBD354