SKU #: FASS-DIFSRAM5001 MPN #: DIFSRAM5001

FASS Fuel Systems Drop-In Series Diesel Fuel Filtration System 25-27 Ram 6.7L Cummins

Name: FASS Fuel Systems Drop-In Series Diesel Fuel Filtration System 25-27 Ram 6.7L Cummins
Brand: FASS Fuel Systems
Price: 479.0 USD
Availability: InStock

$479.00

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FASS Drop-In Series Diesel Fuel System DIFSRAM5001 for 2025-2027 Ram 6.7L Cummins

FASS DIFSRAM5001 drop-in fuel filtration system with XWS3002XL and CWS1010 filters

FASS Drop-In Series Diesel Fuel System installation components and mounting hardware

Description

Want to improve fuel filtration on your Ram 6.7L Cummins without replacing the factory fuel pump? The FASS Drop-In Series Diesel Fuel System DIFSRAM5001 is designed to remove air, vapor, water, and contaminants from diesel fuel before they reach your fuel injection system. By providing cleaner fuel, this system is designed to help protect fuel injection components while supporting smoother engine operation, fuel efficiency, and consistent performance. Unlike a traditional aftermarket lift pump, the FASS Drop-In Series works with your truck's existing factory in-tank fuel pump. It mounts in the factory location and combines air and vapor separation, an Extreme Water Separator, and 2-micron absolute microglass filtration to help keep water and fine contaminants out of your fuel system. For standard applications, the system is designed for straightforward installation, with all connections located at the fuel tank. The kit includes the necessary fittings, brackets, hardware, and instructions. FASS estimates installation takes approximately one hour. Cab-and-chassis applications require modifications and may take longer to install. IMPORTANT FITMENT NOTES: This is a fuel filtration and air separation system, NOT a replacement lift pump. It uses the factory RAM in-tank fuel pump. Not compatible with the FASS Fuel Sump Kit. May not fit aftermarket high-capacity fuel tanks. Verify clearance before ordering. Installation on cab-and-chassis models requires modifications.

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Want to improve fuel filtration on your Ram 6.7L Cummins without replacing the factory fuel pump? The FASS Drop-In Series Diesel Fuel System DIFSRAM5001 is designed to remove air, vapor, water, and contaminants from diesel fuel before they reach your fuel injection system. By providing cleaner fuel, this system is designed to help protect fuel injection components while supporting smoother engine operation, fuel efficiency, and consistent performance.

Unlike a traditional aftermarket lift pump, the FASS Drop-In Series works with your truck's existing factory in-tank fuel pump. It mounts in the factory location and combines air and vapor separation, an Extreme Water Separator, and 2-micron absolute microglass filtration to help keep water and fine contaminants out of your fuel system.

For standard applications, the system is designed for straightforward installation, with all connections located at the fuel tank. The kit includes the necessary fittings, brackets, hardware, and instructions. FASS estimates installation takes approximately one hour. Cab-and-chassis applications require modifications and may take longer to install.

IMPORTANT FITMENT NOTES:

This is a fuel filtration and air separation system, NOT a replacement lift pump. It uses the factory RAM in-tank fuel pump.
Not compatible with the FASS Fuel Sump Kit.
May not fit aftermarket high-capacity fuel tanks. Verify clearance before ordering.
Installation on cab-and-chassis models requires modifications.

NOT LEGAL FOR SALE OR USE IN CALIFORNIA

Manuals and Guides

INSTALL INSTRUCTIONS

Vehicle Fitment

2025-2027 Ram 2500/3500 6.7L Cummins

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

FEATURES & BENEFITS:

Drop-in fuel filtration and air separation system for the factory RAM fuel system
Retains the OEM in-tank lift pump
Designed to remove entrained air and vapor from diesel fuel
Provides 2-micron absolute filtration with a microglass filter element
Extreme Water Separator helps protect fuel injection components from water contamination
Designed to support smoother engine operation, fuel efficiency, and consistent performance
Plug-and-play design for compatible applications
Includes necessary fittings, brackets, and installation hardware
Approximately one-hour installation time estimated by FASS
Optional electric heater and FASS Connect monitoring accessories available separately

KIT & SPECIFICATIONS:

(1) FASS Drop-In Series Air Separation/Filtration System
(1) FASS XWS3002XL Extreme Water Separator
(1) FASS CWS1010 Coalescing Water Separator
(1) Installation kit with necessary fittings, brackets, and hardware

About FASS Fuel Systems

FASS Fuel Systems is an American manufacturing company specializing in the engineering, design, and production of fuel systems and accessories for diesel vehicles. The name œFASS stands for Fuel Air Separation System, which is a perfect acronym for the functionality of a FASS system. FASS builds vehicle specific fuel / lift pumps of varying levels of displacement to meet the needs of the exact build level of your Dodge Ram with a 5.9L or 6.7L Cummins engine, Ford with a Powerstroke engine, Chevrolet or GMC with a Duramax engine, or even your Big Rig Class 8.

GET YOUR FASS FUEL SYSTEM HERE!

Diesel Power Products is an authorized FASS Fuel System dealer, meaning you have peace of mind in retaining your complete factory warranty (lifetime warranty on Titanium systems) and the fact if any issues come up, we are well versed in the operation of these systems and can typically help you determine any issues for a quick resolution.

FASS LIFT PUMPS, FUEL FILTERS, AND MORE

When it comes to fuel systems, FASS has you covered from fuel tank all the way to your injection pump to ensure youre not guessing how to make this part match up to that or what other components youll need and who to get it from. When it comes time to service your FASS Titanium Fuel System with new filters, you can opt for their standard direct replacement offering or the Extended Lenth Particulate Filters and Water Separation Filters. And because sometimes you might find yourself in the middle of nowhere with a bad batch of fuel and no extra FASS filters, FASS systems are designed with cross reference filters in mind, and they even publish that cross reference sheet on their website. When installing a FASS system, or maybe after the fact, maybe you want to eliminate the ugly, unused stock fuel filter¦.no problem, FASS has a complete line up of fuel filter deletes and other accessories to clean up your engine bay. Maybe you live in a colder climate and realizing that once you bypassed your stock fuel filter it also removed your stock fuel heater¦.FASS has you covered yet again. Yes, you can have all of the factory creature comforts but still a high flowing, properly filtered fuel system.

EXPERIENCE A FASS FUEL SYSTEM FOR YOURSELF

While FASS is most known for their Titanium Signature Series Fuel System that includes an integrated fuel filter and water separator, FASS also builds other popular systems. Do you like the idea of a higher volume frame mounted lift pump, but prefer to keep the stock filtration and fuel heater? The Signature Series Adjustable Fuel Pumps are your answer. Or maybe youve got a Cummins with the original block mounted pump thats finally let go and youre not ready to invest in a complete system. Okay, the DRP (Direct Replacement Pump) is a great option. Maybe you have a Duramax and just looking for a little extra oomph of fuel to your injection pump. Similar to the DRP for Rams, FASS has their Dura-Max Diesel Flow Enhancer.

Overall, you can never go wrong upgrading your truck with a FASS Fuel System. As always, if you have any questions about which system is right for you, dont hesitate to reach out and we will be happy to steer you in the right direction.