Product Description
FLEECE FPE-34780 AUXILIARY FUEL FILTER AND LINE KIT FOR 1998.5-2002 DODGE CUMMINS
Protect your VP44 and improve fuel reliability with the FLEECE FPE-34780 Auxiliary Fuel Filter and Line Kit for the 1998.5–2002 5.9L Cummins. Designed by Fleece Performance Engineering, this system adds an upgraded high-flow fuel filter and replaces restrictive factory hard lines that starve the injection pump under load.
The VP44 pump is extremely sensitive to fuel cleanliness and pressure, and many factory systems struggle to deliver consistent flow — especially on trucks with age, lift pumps, or performance modifications. This kit solves those issues by providing improved filtration, better line routing, and increased reliability, ensuring your VP44 lives a long, healthy life.
Key Features:
- Upgraded auxiliary fuel filter designed to improve filtration quality
- High-quality fuel line replacement kit reduces restrictions
- Protects the VP44 injection pump — crucial for 1998.5-2002 Cummins
- Improves reliability in towing, performance, and daily-driving applications
- Includes hardware, hoses, and fittings needed for installation
- Engineered by Fleece Performance for optimum system flow
Fitment
Engine: 5.9L Cummins 24-Valve
Model Years: 1998.5, 1999, 2000, 2001, 2002
- 1998.5–2002 Dodge Ram 2500 5.9L Cummins
- 1998.5–2002 Dodge Ram 3500 5.9L Cummins
Note: Intended for use on VP44-equipped trucks. Not compatible with earlier 12-Valve or later common-rail systems.
Recommended Fleece Cross-Reference / Related Parts
- FLEECE FPE-34772 POWERFLO LIFT PUMP FOR 1998.5-2002 CUMMINS
- FLEECE FPE-34771 POWERFLO INLINE LIFT PUMP FOR 1998.5-2002 CUMMINS
- FLEECE FPE-34759 FUEL DISTRIBUTION BLOCK FOR 1998.5-2002 CUMMINS
- FLEECE FPE-34372 FUEL LINE REPAIR KIT FOR 1998.5-2002 CUMMINS
Why Upgrade Your VP44 Fuel System?
The 24-Valve 5.9L Cummins VP44 system is known for being fuel-pressure sensitive. Low pressure or inadequate filtration can lead to premature pump failure, costing thousands of dollars. This Fleece kit provides a major reliability upgrade by ensuring the pump always has clean fuel and unrestricted supply. For work trucks, tow rigs, or modified Cummins builds, this is one of the most valuable preventative upgrades available.
Installation Notes
- Professional installation recommended — improper routing can restrict fuel flow.
- Pair with a high-quality lift pump for maximum VP44 protection.
- Inspect fuel lines regularly for leaks or abrasion near frame and engine components.
- After installation, confirm proper fuel pressure at idle and under load.
Specifications for FLEECE FPE-34780
| Attribute | Value |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-34780 |
| Engine Compatibility | 1998.5–2002 5.9L Cummins (VP44) |
| UPC | 670875716230 |
| GTIN | 670875716230 |
| Includes | Auxiliary fuel filter, fuel line, fittings, mounting hardware |
| Shipping Weight | Approx. 4 lb (varies by packaging) |
| Cross Reference | FPE-34772, FPE-34771, FPE-34759, FPE-34372 (See link list above) |
| E-Codes | Not applicable |
| Prop 65 | WARNING: Cancer & Reproductive Harm — www.P65Warnings.ca.gov |
| Warranty | Fleece Limited Parts Warranty |
FAQ
Does this kit replace my stock fuel filter?
No — this kit adds an auxiliary filter for better protection. It is used in addition to your OE or aftermarket lift-pump filtration system.
Will this help prevent VP44 failure?
Yes. Improved filtration and reduced line restriction help maintain proper fuel pressure, which is critical for VP44 life. This is considered a preventative upgrade.
Does this work with aftermarket lift pumps like Fleece PowerFlo or AirDog/FASS?
Yes. This kit is compatible with most aftermarket fuel systems, including the Fleece PowerFlo.
Is tuning required after installation?
No. This upgrade does not affect ECM calibration and requires no tuning adjustments.
Can this kit be installed with the tank in place?
Yes — the system is designed so most trucks can be serviced without tank removal. However, some installers prefer dropping the tank for easier line routing.
