Performance Overview

aFe DFS780 Series includes high quality fuel pumps and filters that will greatly improve your Diesel engine's performance. aFe DFS780 will provide your engine with only clean fuel ? any contaminants, water and air will be precisely filtered. aFe also offers two models of DFS780 ? Relay Controlled and Boost Controlled. The Relay Controlled is designed for full-time operation, while the Boost Controlled is made for part-time operation. aFe DFS780 fuel systems come with all required mounting hardware

Key Features

• Brand: aFe Power
• Part number: 42-12021
• Product type: DFS780 Series Diesel Fuel System
• Designed for the compatible vehicle applications listed on this page

Vehicle Fitment

• 2003 Dodge Ram 2500, Note: Slt, St; 5.9L
• 2004 Dodge Ram 2500, Note: Slt, St; 5.9L
• 2003 Dodge Ram 3500, Note: Laramie, Slt, St; 5.9L
• 2004 Dodge Ram 3500, Note: Laramie, Slt, St; 5.9L

FAQ

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

What part number is this?
The listed part number is 42-12021.

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

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

Common Searches

• DFS780 Series Diesel Fuel System for Dodge Ram 2500
• 42-12021 fitment
• aFe Power DFS780 Series Diesel Fuel System
• 2003 Dodge Ram 2500 DFS780 Series Diesel Fuel System

Vehicle Fitment Table