550 kW standby / 500 kW prime Tier 4 Final diesel generator from Blue Star Power Systems. Volvo Penta TWD1682GE 16.12L inline-six with SCR/DPF/DOC, DSE DCP7310 controller, three-phase 208-600V.
The Blue Star VD550-04FT4 is a 550-kilowatt standby / 500-kilowatt prime EPA Tier 4 Final / EU Stage 5 diesel generator built around the Volvo Penta TWD1682GE — a 16.12-liter inline-six with water-cooled charge-air cooling. This is the first model in the Blue Star Tier 4 Final lineup where standby and prime ratings diverge, and the first to use the large TWD engine platform.
The jump from the 12.8L TAD engines (VD250-300) to the 16.12L TWD platform represents a fundamental change in engine architecture — the water-cooled charge-air cooler (H2O-to-Air CAC) replaces the air-to-air aftercooler used on all smaller T4F models. The physical package is correspondingly larger: 160 x 84 x 118 in versus 120 x 66 x 91 in for the VD300.
VD300-04FT4 (300 kW standby/prime, Volvo TAD1383VE 12.8L I-6, Tier 4 Final) — smaller platform, 120 x 66 x 91 in. Choose if 300 kW meets the load study and the smaller footprint is required.
The TWD1682GE introduces a distinct service platform from the 12.8L TAD engines: different oil capacity, coolant volume, filter cross-references, and a water-cooled charge-air cooler requiring its own coolant circuit maintenance. The 52.8-gallon DEF tank significantly reduces DEF refill frequency versus the 18.5-gallon tanks, but the 6.60% consumption rate means approximately 2.53 gph DEF at full standby load — prime power applications running extended hours will need a DEF supply plan. The DSE DCP7310 controller monitors DEF level, aftertreatment temperatures, and DPF regeneration status. DPF ash cleaning intervals will be shorter than on lower-output models due to higher exhaust mass flow.#
Get pricing & lead time on the Blue Star VD550-04FT4
Tell us about the application — kW, voltage, application, install timeline — and we'll respond within one business day with budgetary pricing, lead time, and any sizing notes.
Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.
Estimate runtime on this tank
Estimated runtime
6.8 hours(0.3 days)
Fuel consumption ≈ 29.55 GPH at 75% load. Estimate based on industry-typical 1800 RPM standby curves (≈0.07 GPH/kW at full load). Actual consumption varies by engine, ambient temperature, fuel quality, and tuning.
Service intervals
Manufacturer-recommended intervals for the Blue Star VD550-04FT4 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.
Oil & filter
Every 500 hours or 12 months
Coolant change
Every 6000 hours
Air filter
Every 1000 hours
Fuel filter
Every 500 hours
Major overhaul
≈ 20,000 hours
Load bank test
Every 12 months
Common failure modes
What we've seen fail on this platform. Use as a service-planning reference, not a diagnostic — actual failure modes depend heavily on duty cycle and maintenance history.
Component
Symptom
Typical hours
Severity
DEF system (SCR catalyst)
Derate warning, NOx fault, DEF quality alert
4,380+
moderate
Turbocharger(s)
Major power loss, heavy exhaust smoke
12,000+
severe
Fuel quality / degradation
Injector fouling, hard starting
4,380+
moderate
Battery bank (24V)
Failed start, slow cranking
8,760+
minor
Frequently Asked Questions
What engine is in the VD550-04FT4?
The Volvo Penta TWD1682GE — a 16.12-liter inline-six turbocharged diesel with water-cooled charge-air cooler (H2O-to-Air CAC). The 'TWD' prefix distinguishes water-cooled charge-air cooling from the air-to-air 'TAD' engines used in the smaller T4F models. EPA Tier 4 Final and EU Stage 5 certified with SCR/DPF/DOC triple aftertreatment.
Why is standby 550 kW but prime only 500 kW?
The VD550-04FT4 is the first model in the Blue Star T4F lineup where standby and prime ratings diverge. Standby (550 kW) is the peak rating for emergency applications with typical 80% load factors and limited annual run hours. Prime (500 kW) is the sustained continuous output for high-load-factor or unlimited-hour applications. Size loads against 500 kW for any prime power application.
Does the VD550-04FT4 require DEF?
Yes. DEF consumption is approximately 6.60% of fuel consumption — the highest rate in the Blue Star T4F lineup. The 52.8-gallon integrated DEF tank is approximately 2.85 times the capacity of the 18.5-gallon tanks on VD100-300 models. At full standby load (38.3 gph fuel), DEF consumption is approximately 2.53 gph.
How does the VD550-04FT4 compare to the VD300-04FT4?
The VD550 and VD300 are on entirely different engine platforms. The VD300 uses the 12.8L TAD1383VE in a 120 x 66 x 91 in package at 8,900 lbs. The VD550 uses the 16.12L TWD1682GE with water-cooled charge-air cooling in a 160 x 84 x 118 in package at 13,100 lbs. The footprint jump is substantial — verify site dimensions, floor loading, and access clearances before specifying the VD550.
300 kW Tier 4 Final diesel standby/prime generator from Blue Star Power Systems. Volvo Penta TAD1383VE 12.8L inline-six with SCR/DPF/DOC, DSE DCP7310 controller, 208-600V.
600 kW standby / 570 kW prime Tier 4 Final diesel generator from Blue Star Power Systems. Volvo Penta TWD1683GE 16.12L inline-six with SCR/DPF/DOC, DSE DCP7310 controller, three-phase 208-600V.
550 kW Tier 2 diesel standby generator built by Blue Star Power Systems. Perkins 2506C-E15TAG4 six-cylinder engine with charge air cooling, Stamford HCI534E alternator, DSE DCP7310 controller.
Tier 23-phasecommercialindustrial
B
Blue Star Power Systems
New
Blue Star VD550-01
550 kW standby · Diesel · Liquid-cooled
550 kW Tier 2 diesel standby generator from Blue Star Power Systems. Volvo Penta TAD1642GE-B 16.1L inline-six with DSE DCP7310 controller, 208-600V output.
Tier 23-phasecommerciallarge-commercial
B
Blue Star Power Systems
New
Blue Star VD550-04FT4MP
550 kW standby · Diesel · Liquid-cooled
550 kW standby / 500 kW prime Tier 4 Final / EU Stage 5 mobile trailer diesel generator built by Blue Star Power Systems. Volvo Penta TWD1682GE six-cylinder engine, 572RSL6429 alternator, DSE DCP7310 controller, 550-gallon integrated fuel tank.
Tier 4 Final3-phaseconstructiontemporary-power
B
Blue Star Power Systems
New
Blue Star PD500-01
500 kW standby · Diesel · Liquid-cooled
500 kW Tier 2 diesel standby generator built by Blue Star Power Systems. Perkins 2506C-E15TAG3 six-cylinder engine with charge air cooling, Stamford HCI534D alternator, DSE DCP7310 controller.
Tier 23-phasecommercialindustrial
Need service or parts for the Blue Star VD550-04FT4?
We service every major OEM and stock genuine parts for the most common models.