Product Description
Upgrade your L5P Duramax with proven fuel delivery and filtration. The FASS TSPC15180F140G Titanium Signature Series PLUS delivers approximately 140 GPH at ~65–75 PSI for 2020–2023 GM 6.6L Duramax (stock to ~500 HP). It combines 2-micron absolute filtration, integrated water separation, and patented air/vapor removal to protect injectors and high-pressure pumps while improving drivability and fuel system longevity.
Fitment
- 2020–2023 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax L5P
- 2020–2023 GMC Sierra 2500HD/3500HD 6.6L Duramax L5P
- Application range: Stock–~500 HP; ~140 GPH flow; ~65–75 PSI.
Why this system
- 2-micron absolute filtration + water separation helps extend injector life.
- Removes entrained air/vapor; helps smooth idle and throttle response.
- ORB fittings, 6061 black-anodized hardware, black fuel line for a clean install.
- Backed by FASS limited lifetime warranty (with registration).
Cross-Reference / Related FASS Items (CPP Diesel only)
- FASS TSPC15250F220G (500–900 HP, 220 GPH) — same platform, higher flow.
- FASS TSPC15290F240G (900–1200 HP, 240 GPH) — max flow option.
- FASS XWS3002 Extreme Water Separator — pressure-side water separator (2-micron).
- FASS PF3001 Particulate Filter — suction-side particulate filter (144-micron).
- FASS FLP3000 Fleet Filter Pack — 3× XWS3002 + 3× PF3001 bundle.
- FASS FP3000 Filter Pack — 2× XWS3002 + 2× PF3001.
- FASS HK1001 Electric Heater Kit (Titanium/Titanium Signature) — cold-weather add-on.
- FASS NDTSPC15180F140G No-Drop PLUS Kit — same flow with sump kit for no-drop tank install.
Installation Instructions
Download the official FASS Titanium Signature Series PLUS install manuals here:
- Titanium Signature Series PLUS Installation Manuals (FASS)
- TSP-F20 180F-140G / 220G / 240G PDF — covers 2020-up GM applications.
Specifications for Fass TSPC15180F140G
| Attribute | Value |
|---|---|
| Brand | FASS Fuel Systems |
| Part Number | TSPC15180F140G |
| Flow / Pressure | ~140 GPH @ ~65–75 PSI (approx.) |
| Supported Power | Stock to ~500 HP |
| Filtration | 2-micron absolute, integrated water separation |
| Vehicle Fitment | 2020–2023 GM 6.6L Duramax L5P (Silverado/Sierra 2500HD/3500HD) |
| UPC | Not specified by manufacturer |
| GTIN | Not specified by manufacturer |
| Shipping Weight / Dimensions | Not specified |
| Prop 65 | Yes — Cancer and Reproductive Harm: www.P65Warnings.ca.gov |
FAQ
Will this support a tuned L5P at ~500 HP?
Yes. This 140 GPH PLUS system is specified for stock to ~500 HP builds. For bigger power, step up to the 220 GPH (TSPC15250F220G) or 240 GPH (TSPC15290F240G).
Which filters does it use and where do they go?
Use the XWS3002 on the pressure side and the PF3001 on the suction side (current two-filter strategy).
Is there a “no-drop tank” option?
Yes. See the NDTSPC15180F140G No-Drop PLUS kit, which includes a sump for simplified install.
Cold climate—should I add heaters?
Consider the HK1001 electric heater kit for Titanium/Titanium Signature systems.
Where can I get the official install manual?
Download from FASS here: Titanium Signature Series PLUS manuals (see the TSP-F20 set for 2020-up GM).
