Product Description
FASS FASD08165G ADJUSTABLE DIESEL FUEL LIFT PUMP 165GPH FOR 1998.5–2004 DODGE 5.9 CUMMINS
The FASS FASD08165G is a Signature Series Adjustable diesel lift pump rated at 165 GPH with an adjustable 1–20 PSI range. Built with the same robust motor used in Titanium Signature systems, it adds a Boost Compensation Port and a dedicated fuel pressure gauge port for precise tuning on your 24-valve 5.9L Cummins (1998.5–2004).
Fitment & Notes
- Vehicle: 1998.5–2004 Dodge Ram 2500/3500 5.9L Cummins (VP44/24-valve).
- Output: 165 GPH; adjustable 1–20 PSI (set to your build’s needs).
- System type: Pump/system only — retains the factory fuel filter on these trucks.
- Ports: Boost compensation port; built-in fuel pressure gauge port.
- Includes: Mounting hardware for a clean, reliable install.
Installation & Manuals
Download the official Adjustable Series manual for this application: FAS-D08-100G/165G Installation Manual (PDF). You can also browse the full manual library here: FASS Installation Manuals.
Cross-Reference & Related FASS Items (CPP Diesel)
- Adjustable Series (same platform): FASD08100G (100GPH), FASD08250G (250GPH), FASD08290G (290GPH).
- Titanium Signature alternatives (same years): TSD08100G (100GPH), TSD08165G (165GPH), TSD08250G (250GPH), TSD08290G (290GPH).
- Titanium Signature PLUS & No-Drop options: TSPD08165G (PLUS), NDTSD08100G (No-Drop), NDTSD08250G (No-Drop), NDTSD08290G (No-Drop).
FAQ
Does this pump replace my factory fuel filter?No. This Adjustable Series system retains the factory fuel filter on these trucks.
What fuel pressure should I run?
The system adjusts 1–20 PSI. Always verify with a gauge and follow your tuner’s recommendations.
Is there a boost compensation feature?
Yes — the Boost Compensation Port helps maintain fuel pressure under WOT.
What comes in the box?
Complete pump assembly with all mounting hardware, plus a dedicated port for an external fuel pressure gauge.
Specifications for Fass FASD08165G
| Brand | FASS Fuel Systems |
| Part Number | FASD08165G |
| Flow / Pressure | 165 GPH; adjustable 1–20 PSI |
| Engine / Years | Dodge Ram 2500/3500 5.9L Cummins (1998.5–2004) |
| Key Features | Boost compensation port; built-in gauge port; Whisper Technology; hardware included |
| UPC | 850044137107 |
| GTIN | 0850044137107 |
| Package Dimensions | 14.00" W × 11.50" H × 18.00" L |
| Shipping | Free Shipping (Continental U.S.) |
| Prop 65 | Yes — Cancer and Reproductive Harm |
