FASS 03-07 Ram 2500/3500 5.9L Cummins Drop-In Fuel System
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Regular price
$507.99
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
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Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
Modern diesel injection systems are ruined by water and debris long before anything shows on a gauge, and the factory water separator is the weak point. The FASS 03-07 Ram 2500/3500 5.9L Cummins Drop-In Fuel System (store SKU fssdifsram2001) drops into that factory location and does the job properly.
- Removes water and filters debris down to 2 microns, which is the difference between a filter doing its job and one merely present.
- Drop-In design mounts in the factory water separator location, so it installs in about an hour without cutting or a lift pump swap.
- Mounts in the stock separator position, so an aftermarket tank with greater capacity may leave no room — check clearance before ordering.
- This is filtration only, not a lift pump — it does not add fuel supply volume for a high-horsepower build.
Fits: 2003-2007 Dodge Ram 2500 and Dodge Ram 3500 with the 5.9L Cummins. The 2007 boundary is mid-year: later-2007 trucks are the 6.7L and take the 2007-2009 system.
Perfect for an owner who wants the injection system protected without dropping the tank or rebuilding the fuel supply.
Shipping Height: 14.0
Shipping Length: 28.0
Shipping Width: 18.0