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What is the Difference Between AirDog 4G and 5G?

Published in Diesel Fuel System 2 mins read

The primary differences between the AirDog 4G and 5G lift pumps lie in their upgraded components and enhanced performance capabilities, particularly concerning operation at high altitudes and under heavy loads.

Key Distinctions Between AirDog II-4G and II-5G

The AirDog II-5G model represents an evolution from its predecessor, the II-4G, incorporating specific improvements designed to optimize fuel delivery and engine power.

Feature AirDog II-4G AirDog II-5G
**Wiring Harnesses & Connectors** Standard components Upgraded for enhanced durability and reliability
**High Altitude Performance** May experience power loss, especially under load (e.g., towing a camper or 5th wheel) Engineered to overcome power loss at higher altitudes, even when under significant load
**Pressure & Flow Rates** Standard rates Enhanced rates specifically designed to combat high-altitude power reduction
**Overall Design Goal** Reliable fuel filtration and lift pump performance Optimized for challenging conditions, ensuring consistent power output

Detailed Improvements of the AirDog II-5G

The advancements in the AirDog II-5G focus on two critical areas: component integrity and operational efficiency in demanding environments.

1. Upgraded Wiring and Connectors

One notable improvement in the AirDog II-5G kits is the inclusion of upgraded wiring harnesses and connectors. This enhancement improves the electrical system's durability and reliability, ensuring a more stable and consistent power supply to the pump. Such upgrades can prevent common issues like corrosion or loose connections that might affect pump performance over time, especially in harsh conditions.

2. Enhanced High-Altitude and Load Performance

The most significant performance upgrade in the II-5G is its ability to overcome power loss at higher altitudes, particularly when a vehicle is under a heavy load. It's common for vehicles, especially diesel trucks hauling items like a camper or a 5th wheel, to experience a noticeable reduction in power when driving in mountainous regions or elevated terrains.

The AirDog II-5G is engineered with specific pressures and flow rates that are robust enough to counteract this common power deficiency. By maintaining optimal fuel delivery and pressure, the II-5G ensures that the engine receives a consistent and adequate fuel supply, preventing the power reduction often associated with thinner air at high altitudes. This makes the II-5G an ideal choice for truck owners who frequently travel through varying elevations or tow heavy loads.

For more information on AirDog lift pump systems and their benefits, you can visit Parley's Diesel Performance.