Product Description
FASS INDUIM100G INDUSTRIAL SERIES DIESEL FUEL SYSTEM CLASS 8 SEMI UIM 100GPH
The FASS INDUIM100G Industrial Series is engineered for Class 8 commercial applications with Unit Injected Mechanical (UIM) fuel systems. Delivering 100 GPH at a preset ~16–18 PSI, it separates air/vapor, removes water and particulates down to 2 microns absolute, and stabilizes fuel supply to protect injectors and pumps—while running quietly thanks to FASS’s silencing technology.
Fitment & System Notes
- Vehicle type: Class 8 / Semi, Universal industrial applications using UIM (mechanical unit injection).
- Flow/Pressure: 100 GPH, preset ~16–18 PSI.
- Plumbing: Air separation port ties into the OEM engine fuel return—no additional fuel return line kit required on most installs.
- Filtration: Extreme water separation + 2-micron particulate control for superior injector protection.
- Service life: Typical filter life up to ~30,000 miles in standard duty (inspect sooner in harsh environments).
Installation & Manuals
Find all FASS manuals here: FASS Installation Manuals. Direct manuals for this platform:
• IND-100G / IND-165G Installation Manual (PDF)
• IND-UIM-100G / IND-UIM-165G Installation Manual (PDF)
Cross-Reference & Related FASS Items (CPP Diesel)
- FASS INDUIM165G (165GPH) — higher-flow UIM option.
- FASS INDUIM250G (250GPH) — UIM heavy-duty flow.
- FASS INDUIM290G (290GPH) — max UIM flow.
- FASS IND100G (Universal 100GPH) — non-UIM variant.
FAQ
What does “UIM” mean on this system?UIM stands for Unit Injected Mechanical. This INDUIM100G is specifically configured for mechanical unit injection Class 8 applications.
Is a separate return line kit required?
No. The FASS air separation port ties into the OEM engine fuel return, eliminating the need for an added return line on most installations.
What fuel pressure does this system maintain?
It is preset to approximately 16–18 PSI, providing a consistent, steady supply for UIM engines.
Does it help with water and air in fuel?
Yes—its Extreme Water Separator removes water while the system continuously removes entrained air/vapor and filters particulates to 2 microns absolute.
How often should I service the filters?
Typical service interval is up to ~30,000 miles; shorten intervals for severe duty or poor fuel quality.
Specifications for Fass INDUIM100G
| Brand | FASS Fuel Systems |
| Part Number | INDUIM100G |
| Application | Class 8 / Semi, Universal industrial, UIM (mechanical unit injection) |
| Flow / Pressure | 100 GPH @ ~16–18 PSI (preset) |
| Filtration | Extreme water separation + 2-micron particulate |
| UPC | 850044106172 |
| GTIN | 0850044106172 |
| Package Dimensions | 14.00" W × 11.50" H × 18.00" D |
| Shipping | Free Shipping (Continental U.S.) |
| Prop 65 | Yes — Cancer and Reproductive Harm |
