Overview#
The Blue Star VD600-04FT4MP is a 600-kilowatt standby / 570-kilowatt prime EPA Tier 4 Final / EU Stage 5 mobile trailer diesel generator powered by the Volvo Penta TWD1683GE — a 16.12-liter, six-cylinder turbocharged and charge-air-cooled engine. It is the largest model in Blue Star's Tier 4 Final mobile lineup, sharing the 334.5 × 99.5 in trailer platform with the VD550-04FT4MP but producing 600/570 kWe from the higher-calibration TWD1683GE.
Blue Star Power Systems mounts the TWD1683GE on an aluminum road trailer with a 550-gallon integral fuel tank and 52.8-gallon DEF tank, paired with a Leroy-Somer 572RSL6431 alternator and DSE DCP7310 controller. At 25,000 lbs, the VD600-04FT4MP is the heaviest unit in the Blue Star Tier 4 Final mobile product line. Three-phase only; no 600V configuration — the mobile lineup is 208V–480V.
TWD1682 vs TWD1683: Same Block, Higher Calibration#
The VD550 (TWD1682GE) and VD600 (TWD1683GE) share the same 16.12-liter Volvo Penta TWD block and physical trailer. The numerical calibration increment (1682 → 1683) reflects a higher fuel delivery and boost mapping to reach 600/570 kWe vs 550/500 kWe. From a service and logistics standpoint, the two models are nearly identical in deployment requirements. The choice between them is driven entirely by load requirement.
Prime Power Ratings at This Output Class#
The VD600-04FT4MP standby rating is 600 kWe; the prime rating is 570 kWe — a 30 kWe spread that is narrower than the 50 kWe spread on the VD550. For prime power applications (continuous variable load, unlimited hours), size to 570 kWe. The 600 kWe rating applies only to emergency standby use. Verify the application rating with the site's power engineer before finalizing the specification.
When to specify the VD600-04FT4MP#
- 550–600 kW three-phase emergency standby or up to 570 kW prime mobile power at large industrial, municipal, healthcare, or data center sites
- Maximum output from Blue Star's Tier 4 Final mobile product line
- Sites up to 4,921 ft elevation at ambient temperatures to 122°F
- Applications requiring EU Stage 5 dual certification at this output level
- Projects where the VD550 at 550/500 kWe is insufficient and the same 334.5 × 99.5 in trailer is acceptable
Our service experience#
The VD600-04FT4MP is the most demanding model in Blue Star's T4F mobile lineup. The TWD1683GE at 600 kWe standby / 570 kWe prime requires the full Volvo Penta TWD preventive maintenance schedule including aftertreatment system management. At 39.6 gph diesel and the associated DEF consumption rate, fuel and DEF logistics dominate operational planning on long deployments. The 334.5 in trailer length and 25,000 lb weight require permits and specialized towing in most jurisdictions. Site entry dimensions must be confirmed: the 99.5 in width exceeds standard lane width in some site configurations. Annual full-load testing at 39.6 gph is mandatory. Exhaust at 862°F and 3,991 CFM requires properly rated exhaust connections and transition hardware.



