# Airdog A7SABD427 II-5G Fuel Air Separation System (165 GPH) for 2019–2021 Dodge 2500

**Overview:**

This is the AirDog II-5G DF-165 Fuel Air Separation System for the 2019-2021 Dodge Ram 6.7L Cummins 24V 2500/3500 truck. The first diesel Fuel Air Separation System to include an integrated diaphragm fuel pressure regulator. It allows for better fuel flow at pressure, greater fuel pressure adjustability and boost compensation. All 5G systems include with upgraded wiring harnesses and connectors. The hardness features 12-gauge wiring from the battery throughout to the motor. A Metri-Pck 280 connector exchanges with the Deutch 2-pin connector which allows more current flow without generating excessive heat. Other hardness connectors are weather-sealed to help keep the elements out. Use the same 4G motor technology with better reliability, quiet operating system and keeps the "Demand Flow" from the previous AirDog II variants. This AirDog II-5G provides protection and performance like no other lift pump. With their patented air separation, water separator, and fuel filter are to make sure the expensive components in your fuel injection system gets all the clean fuel they can manage. This kit overcomes loss of power due to driving in higher altitudes with OEM fuel pump. By removing spray pattern disruption due to air entering the system, it helps to better the engine performance. It keeps the designed injection timing to allow more complete burn of the fuel entering the cylinder which increases engine efficiency across the power and torque range.

**Features:**

-   Larger ports over previous pumps
-   Includes wiring, plumbing & hardware
-   Integrated diaphragm fuel pressure regulator
-   Low flow returns for reduced aeration
-   Increases engine efficiency
-   Increases fuel flow pressure
-   12-Gauge wiring harness
-   165GPH fuel pump
-   Reliable & quiet operation

**Product Details:**

Mftr. Part#: A7SABD427  
UPC: 813094015276  
Weight (lbs.): 27.00 lbs.  
Dimensions: 7.00" x 19.00" x 13.00"

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2019

Dodge

2500

Engine: Cummins 6.7L

2020

Dodge

2500

Engine: Cummins 6.7L

2021

Dodge

2500

Engine: Cummins 6.7L

2019

Dodge

3500

Engine: Cummins 6.7L; Configuration: DRW

2019

Dodge

3500

Engine: Cummins 6.7L; Configuration: SRW

2020

Dodge

3500

Engine: Cummins 6.7L; Configuration: DRW

2020

Dodge

3500

Engine: Cummins 6.7L; Configuration: SRW

2021

Dodge

3500

Engine: Cummins 6.7L; Configuration: DRW

2021

Dodge

3500

Engine: Cummins 6.7L; Configuration: SRW

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the compatibility table above before purchase.

**What part number is this?**  
The listed part number is A7SABD427.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

### Common Searches

-   II-5G Fuel Air Separation System (165 GPH) for Dodge 2500
-   A7SABD427 fitment
-   Airdog II-5G Fuel Air Separation System (165 GPH)
-   2019–2021 Dodge 2500 II-5G Fuel Air Separation System (165 GPH)

## Details

- **Price:** 1242.3 CAD
- **Vendor:** Airdog
- **Type:** II-5G Fuel Air Separation System (165 GPH)
- **Tags:** 2019–2021 Dodge 2500, A7SABD427, Air/Fuel Separation, Airdog, Cummins, Diesel Performance, Fuel Filter, Fuel Pump, II-5G Fuel Air Separation System (165 GPH), Water Separator

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1242.30 CAD | In stock |

## Images

- Airdog A7SABD427 II-5G Fuel Air Separation System (165 GPH) for 2019–2021 Dodge 2500

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/airdog-a7sabd427-ii-5g-fuel-air-separation-system-165-gph)
> Updated: 2026-10-17