Product Description
FASS TSC11165G TITANIUM SIGNATURE SERIES DIESEL FUEL SYSTEM 165GPH FOR 2011–2014 GM 6.6L DURAMAX
The FASS TSC11165G delivers a verified 165 GPH at approximately 8–10 PSI for the 2011–2014 GM 6.6L Duramax (LML). It combines FASS Whisper Technology for quiet operation with 2-micron absolute filtration and active air/vapor separation to protect injectors and stabilize rail pressure under load.
Fitment & System Notes
- Vehicle: 2011–2014 Chevrolet Silverado/GMC Sierra 2500HD/3500HD, 6.6L Duramax LML.
- Output: 165 GPH, preset ~8–10 PSI.
- Use case: Ideal for builds in the ~600–1,000 HP range when properly supported.
- Filter strategy (current-gen): Run XWS3002 Extreme Water Separator on the pressure side and PF3001 Particulate Filter on the suction side.
- Includes: Brackets/hardware plus bulkhead & 5/8" suction tube for streamlined install.
Installation & Manuals
Full instructions are available from FASS: FASS Installation Manuals. Direct PDF for this application: TS-C11-100G / TS-C11-165G Installation Manual (PDF).
Cross-Reference & Related FASS Items (CPP Diesel)
- Alternate flow ratings for 2011–2014 Duramax: TSC11100G (100GPH)
- Larger GM coverage: TSC10250G (250GPH) | TSPC11165G (PLUS version) | NDTSC11165G (No-Drop Kit)
- Service filters: XWS3002XL, PF3001XL
- Popular accessory: STK1002 Suction Tube Kit
FAQ
What horsepower range is a 165GPH system good for on an LML?Generally suited for ~600–1,000 HP builds when the rest of the fuel system and tuning match the demand.
Which filters do I need with TSC11165G?
Use the current pair: XWS3002 (pressure side) and PF3001 (suction side). For extended service, use XWS3002XL with PF3001XL.
Does this kit include a sump or suction tube?
The kit includes a bulkhead & 5/8" suction tube (see manual). If you prefer a no-tank-drop install, consider the NDTSC11165G package with sump.
What pressure does the pump run?
Factory-preset around 8–10 PSI for this application.
Specifications for Fass TSC11165G
| Brand | FASS Fuel Systems |
| Part Number | TSC11165G (supersedes TS C11 165G) |
| Flow / Pressure | 165 GPH @ ~8–10 PSI (preset) |
| Engine / Years | GM Duramax 6.6L LML, 2011–2014 (2500HD/3500HD) |
| Horsepower Support | ~600–1,000 HP (application dependent) |
| Filter Pair | XWS3002 (pressure side) + PF3001 (suction side) |
| UPC | 850044106288 |
| GTIN | 0850044106288 |
| Shipping Weight | ~26.7 lb |
| Package Dimensions | ~14.2" W × 11.8" H × 18.2" D |
| Prop 65 | Yes — Cancer and Reproductive Harm |
