Product Description
FASS FASC09250G ADJUSTABLE DIESEL FUEL LIFT PUMP 250GPH FOR 2001–2016 GM 6.6L DURAMAX
The FASS FASC09250G is a Signature Series Adjustable diesel lift pump rated at 250 GPH with an adjustable 1–75 PSI range to match aggressive Duramax builds. It retains the factory engine bay filter on these trucks and adds a Boost Compensation Port plus a dedicated fuel pressure gauge port for precise tuning.
Fitment & Notes
- Vehicle: 2001–2016 Chevrolet/GMC 6.6L Duramax (LB7, LLY, LBZ, LMM, LML).
- Output: 250 GPH; adjustable 1–75 PSI (set to your build’s needs).
- System type: Pump/system only — retains factory fuel filter on these trucks.
- Ports: Boost compensation port; dedicated fuel pressure gauge port.
- Includes: Complete mounting hardware for a clean, reliable install.
Installation & Manuals
Official FASS manuals:
- FASS Installation Manuals
- Signature Series Adjustable Fuel Pump Manuals
- Adjustable 250G/290G Install Manual (PDF)
Cross-Reference & Related FASS Items (CPP Diesel)
- Same-platform Adjustable options: FASC09100G (100GPH), FASC09165G (165GPH), FASC09290G (290GPH).
- Titanium Signature alternatives (same era): TSC10250G (250GPH), TSC10290G (290GPH).
- No-Drop & PLUS kits (paired with sump for easier installs): NDTSPC10250G (No-Drop PLUS 250GPH), NDTSPC10290G (No-Drop PLUS 290GPH).
FAQ
Does this pump replace my factory fuel filter?No. Adjustable Series systems for Duramax retain the factory engine-bay fuel filter.
What fuel pressure should I run?
The system adjusts 1–75 PSI. Target the pressure your tuner recommends and verify with a gauge.
Is there a boost compensation feature?
Yes. The integrated Boost Compensation Port helps stabilize fuel pressure under heavy load.
What comes in the box?
Pump assembly with all mounting hardware, fittings/lines per kit, and ports for a fuel pressure gauge.
Specifications for Fass FASC09250G
| Brand | FASS Fuel Systems |
| Part Number | FASC09250G |
| Flow / Pressure | 250 GPH; adjustable 1–75 PSI |
| Engine / Years | GM 6.6L Duramax (2001–2016) |
| Key Features | Boost compensation port; built-in gauge port |
| UPC | 850044106974 |
| GTIN | 0850044106974 |
| Shipping Weight | ~18 lb |
| Package Dimensions | 14.00" W × 11.50" H × 18.00" L |
| Shipping | Free Shipping (Continental U.S.) |
| Prop 65 | Yes — Cancer and Reproductive Harm |
