What engine does the Generac SDMD2000 use?

The SDMD2000 uses a Mitsubishi S16R-Y2PTAW2-1 65.4-liter (3,989 cubic inch) V16 turbocharged and intercooled diesel engine running at 1800 RPM. The engine features a 6.69-inch (170 mm) bore, 7.09-inch (180 mm) stroke, and 14.0:1 compression ratio. It produces 2,923 horsepower at standby rating and is EPA Tier 2 Certified for Stationary Emergency applications.

What is the fuel consumption of the Generac SDMD2000?

At standby rating on ultra-low-sulfur diesel, the SDMD2000 consumes approximately 140 gallons per hour at 100% load, 105 gph at 75% load, and 70 gph at 50% load. Actual consumption varies by site conditions, load profile, and altitude.

What voltages are available for the SDMD2000?

The SDMD2000 is available in two three-phase configurations: 277/480 VAC and 346/600 VAC, both at 0.8 power factor. The unit is UL 2200 listed and rated at 2,500 kVA standby. Paralleling is supported through Generac's Modular Power Systems (MPS) platform.

Generac · SD/MD Series (Industrial Diesel)

Generac SD2000/MD2000

2000 kW standby · Diesel · Liquid-cooled

2000 kW diesel industrial standby generator. Mitsubishi 65.4L V16 turbocharged/intercooled, EPA Tier 2 Certified Stationary Emergency.

Standby power: 2000 kW
Voltage options: 277/480V, 346/600V
Frequency / Phase: 60 Hz · 3-phase
Engine: Mitsubishi 65.4L · 65.4L
EPA / Emissions: Tier 2
Alternator: Generac

Commercial Manufacturing Healthcare Data Centers

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Overview#

The Generac SD2000/MD2000 is a 2,000-kilowatt industrial diesel generator powered by a Mitsubishi S16R-Y2PTAW2-1 65.4-liter V16 turbocharged and intercooled diesel engine producing 2,923 horsepower. This unit is EPA Tier 2 Certified for Stationary Emergency applications and represents the top output of Generac's Mitsubishi-powered diesel platform. Above this power level, Generac transitions to Baudouin engines in the SDMD2250 and larger models.

The SD and MD designations represent different enclosure and configuration options on the same power platform. The SDMD2000 is rated at 2,500 kVA standby at 0.8 power factor and supports paralleling through Generac's Modular Power Systems.

Our Service Experience#

The SDMD2000 pushes the Mitsubishi S16R platform to its maximum output, which means the engine operates at higher specific loading than the SD1500 and SD1750 using the same block. Fuel consumption at full load is substantial, and we recommend duplex fuel filtration and regular fuel quality testing for standby applications. The V16 configuration requires careful attention to cylinder balance and turbocharger performance at this output level. Given the critical nature of facilities served at 2 MW capacity, we recommend comprehensive service contracts with guaranteed emergency response times.

Engineering specifications

Fuel system & runtime

Fuel use @ full load: 140 GPH
Fuel use @ 75% load: 105 GPH
Fuel use @ 50% load: 70 GPH

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Estimate runtime for the Generac SD2000/MD2000

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

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Generator size

Fuel

Fuel tank capacity

gal

Load

Override full-load GPH (optional)

GPH

Estimated runtime

1.9 hours(0.1 days)

Fuel consumption ≈ 108.00 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 Generac SD2000/MD2000 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 4000 hours
Air filter: Every 1000 hours
Fuel filter: Every 500 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
Fuel quality / degradation	Hard starting, injector fouling, filter clogging, reduced power output	4,380+	moderate
Turbocharger	Power loss, excessive smoke under load, oil consumption	15,000+	moderate
High pressure common rail injection system	Rough running, misfiring cylinders, fuel rail pressure faults	20,000+	severe
Battery (24 VDC system)	Failed to start, slow cranking	8,760+	minor

Frequently Asked Questions

What engine does the Generac SDMD2000 use?: The SDMD2000 uses a Mitsubishi S16R-Y2PTAW2-1 65.4-liter (3,989 cubic inch) V16 turbocharged and intercooled diesel engine running at 1800 RPM. The engine features a 6.69-inch (170 mm) bore, 7.09-inch (180 mm) stroke, and 14.0:1 compression ratio. It produces 2,923 horsepower at standby rating and is EPA Tier 2 Certified for Stationary Emergency applications.
What is the fuel consumption of the Generac SDMD2000?: At standby rating on ultra-low-sulfur diesel, the SDMD2000 consumes approximately 140 gallons per hour at 100% load, 105 gph at 75% load, and 70 gph at 50% load. Actual consumption varies by site conditions, load profile, and altitude.
What voltages are available for the SDMD2000?: The SDMD2000 is available in two three-phase configurations: 277/480 VAC and 346/600 VAC, both at 0.8 power factor. The unit is UL 2200 listed and rated at 2,500 kVA standby. Paralleling is supported through Generac's Modular Power Systems (MPS) platform.

Compatible equipment

Transfer switches

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