Generator 25 KVA Towable
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The 25 kVA (20 kW) mobile generator engineered for reliable power in demanding jobsite, event, and emergency applications across Hawaiʻi. Powered by the Doosan D18 Tier 4 Final diesel engine, the G25 delivers long runtime, quiet operation, and exceptional voltage stability through its Marelli alternator, known for fast transient response and excellent motor‑starting capability.
Designed for rental fleets and contractors, the G25 features user‑friendly controls, multiple voltage configurations, and a rugged, sound‑attenuated enclosure built to withstand harsh conditions. With a 47‑gallon fuel tank and up to 25.9 hours of runtime at 100% load, this generator provides dependable power for concrete cutting, lighting, pumps, tools, festivals, and emergency backup across Oʻahu, Maui, and the Big Island.
KEY FEATURES
- 25 kVA / 20 kW prime power output
- Doosan D18 Tier 4 Final diesel engine
- Marelli alternator for stable voltage & strong motor starting
- Quiet operation: 63 dB(A) @ 23 ft (100% load)
- 47‑gallon fuel tank with 25.9‑hour runtime at full load
- 3‑position voltage switch (120/240V 1Ø, 208V 3Ø, 480V 3Ø)
- 50/60 Hz switchable frequency
- Rugged, sound‑attenuated enclosure
- Easy‑read gauges & diagnostic display
- Ideal for rental fleets, construction, events, and emergency power
TECHNICAL SPECIFICATIONS
(All values verified from Doosan Portable Power.)
| Specification | Detail |
|---|---|
| Prime Output | 25 kVA (20 kW) |
| Voltage Options | 480V 3Ø, 240V 3Ø, 208V 3Ø, 240V 1Ø, 120V 1Ø |
| Frequency | 50/60 Hz switchable |
| Engine | Doosan D18 |
| Displacement | 1.794 L |
| Cylinders | 3 |
| Engine Power | 33.5 hp (25 kWm) @ 1800 RPM |
| Emissions | Tier 4 Final (DOC only, no DEF) |
| Fuel Tank Capacity | 47 gal (177 L) |
| Runtime @ 100% Load | 25.9 hr |
| Sound Level | 63 dB(A) @ 23 ft |
| Dimensions (with running gear) | 130.5″ L × 72.8″ W × 76.6″ H |
| Weight (ready to run) | 3,140 lb (1,424 kg) |
Sound Level at 23 ft and 100% Load: 63 dB(A)










