Product Description
Unlock consistent fuel pressure and clean, air-free diesel delivery on your LB7-LML Duramax. The FASS FASC09100G is a Signature Series Adjustable lift pump that flows 100 GPH and lets you fine-tune fuel pressure (1–20 PSI) to match stock-to-moderate builds. Whisper-quiet operation, improved filtration path, and air/vapor separation help protect injectors and maintain rail pressure under load.
Fitment
- GM/Chevy 6.6L Duramax, 2001–2016 — LB7 (2001–2004), LLY (2004.5–2005), LBZ (2006–2007), LMM (2007.5–2010), LML (2011–2016)
- Recommended for stock–~600 HP builds using factory filtration (use a gauge when adjusting pressure).
Why Choose This Pump
- Adjustable fuel pressure: 1–20 PSI
- High-performance flow rating: 100 GPH
- Built-in boost compensation port and fuel pressure gauge port
- Includes bracketry and hardware for a clean install
Recommended Cross-References (FASS on CPP Diesel)
- FASS TSC10100G Titanium Signature Series 100GPH (’01–’10 Duramax)
- FASS TSC10250G Titanium Signature Series 250GPH (’01–’16 Duramax)
- FASS TSC10290G Titanium Signature Series 290GPH (’01–’16 Duramax)
- FASS STK1002 Suction Tube Kit (Bulkhead)
- FASS PF3001 Particulate Filter
- FASS FP3000 Filter Pack (XWS3002 + PF3001)
- FASS FLP3000XL Fleet Filter Pack XL
Installation Instructions
Download the latest FASS installation manuals here: FASS Manuals
FAQs
What horsepower range is this 100GPH adjustable pump best for?Typically stock to ~600 HP Duramax builds when the rest of the fuel system and tuning are properly matched. Use a fuel pressure gauge when adjusting.
Do I still use my factory fuel filter with the FASC09100G?
Yes—this is an adjustable lift pump that feeds the OE filter. For enhanced service life, keep spare PF3001 and XWS3002 filters (see FP3000 pack).
Will a suction tube or sump improve inlet supply?
Yes—pairing with a FASS STK1002 bulkhead/suction tube can reduce restriction and help sustain commanded pressure at WOT.
What’s the adjustable pressure range?
1–20 PSI via the regulator on the pump body (use a gauge).
Specifications for Fass FASC09100G
| Spec | Value |
|---|---|
| Brand | FASS Fuel Systems |
| Part Number | FASC09100G |
| Flow Rating | 100 GPH |
| Adjustable Pressure | 1–20 PSI |
| UPC | 850044106950 |
| GTIN | 0850044106950 |
| Engine Compatibility | GM/Chevy 6.6L Duramax (LB7, LLY, LBZ, LMM, LML), 2001–2016 |
| Shipping Weight | ~18 lb |
| Shipping Method | Small parcel (UPS/FedEx); calculated at checkout |
| Prop 65 | Yes — Cancer and Reproductive Harm |
