Overview#
The Hipower HRFW-325 T4F is a 325 kVA (286 kW standby / 260 kW prime) trailer-mounted mobile diesel generator built for rental fleet and construction deployment. Power is delivered by an FPT Industrial diesel engine — the same engine family found in heavy construction equipment and commercial trucks, giving rental operators confidence in parts availability and technician familiarity. The unit is EPA Tier 4 Final certified, making it legal for deployment on California job sites without variance.
Manufactured at Hipower's Olathe, Kansas facility, the HRFW-325 is part of Hipower's dedicated rental mobile series — designed from the ground up for repeated hook-up, transport, and deployment cycles rather than retrofitted from a stationary frame. Output is three-phase 277/480V at 60 Hz, suited to heavy construction loads including tower cranes, concrete pumps, and temporary distribution panels.
OnPoint Generators stocks and services HRFW units for Bay Area construction contractors, industrial facilities, and outdoor event productions requiring 250–300 kW of portable standby power.
Engine Platform#
The HRFW-325 uses an FPT Industrial (formerly IVECO) diesel engine from the Cursor or N67 engine family — liquid-cooled, turbocharged inline configurations that meet EPA Tier 4 Final without requiring a diesel particulate filter on some ratings. FPT engines are used across a broad range of heavy equipment and have established parts and service networks throughout Northern California, including dealer coverage in the Bay Area, Sacramento Valley, and Central Valley.
At 1,800 RPM, the engine runs at standard generator speed, maximizing alternator life and reducing mechanical fatigue versus high-speed units. Rental operators benefit from the broad availability of FPT service technicians and stocked parts at IVECO-affiliated dealers.
Built for Rental Deployment#
The HRFW series is trailer-mobile from the factory — not a skid unit placed on a third-party trailer. This matters for rental fleets: the frame, tongue, coupler, and roadway lighting are engineered together with the generator set, not bolted on as an afterthought. Features typically include:
- DOT-compliant trailer with surge brakes and marker lighting for highway towing
- Quick-connect power panels for fast site hookup — reduces setup time from hours to under one hour
- Lockable weatherproof enclosure protecting fuel, controls, and electrical components during transport and outdoor storage
- Integral fuel tank sized for extended runtime without refueling stops on long shifts
- EPA Tier 4 Final certification ensuring California Air Resources Board (CARB) compliance for Bay Area and statewide job sites
The 325 kW class is a common workhorse size for mid-size construction projects: it can carry a full temporary distribution panel serving multiple trades simultaneously, or serve as a primary feed for a commercial building renovation while the utility connection is offline.
Service & Maintenance#
Rental service intervals are set tighter than stationary units due to the variable fueling, storage, and transport conditions typical of fleet operation:
- Oil and oil filter: Every 250 hours or 6 months, whichever comes first
- Fuel filter: Every 250 hours — critical given portable job site fueling quality variation
- Air filter: Every 500 hours or when restriction indicator trips
- Major overhaul inspection: At 15,000 hours
Pre-deployment inspection checklist (OnPoint standard before every rental dispatch):
- Check engine oil level and condition
- Inspect fuel filter and verify no water contamination
- Test starting battery voltage under load
- Inspect trailer coupler and ball hitch — grease if needed
- Verify all roadway lights functional
- Confirm enclosure latches secure
- Check coolant level and antifreeze concentration
- Run unit at 25% load for 10 minutes before confirming dispatch-ready
Our Service Experience#
OnPoint Generators deploys HRFW units across the Bay Area for construction contractors, utility companies, and event production firms. FPT engine parts are stocked by authorized IVECO dealers throughout Northern California, meaning emergency parts sourcing rarely requires overnight freight. Our technicians are familiar with both the generator end (Stamford alternator) and the FPT engine platform, keeping service turnaround fast between rental deployments.
For projects requiring 250–300 kW of mobile power in California, the HRFW-325 T4F is a strong choice: Tier 4 Final compliant, trailer-mobile, and backed by an engine platform with deep regional service coverage.
