Overview#
The Kohler 2000REOZMD is a 2,000-kilowatt standby (1,820 kW prime) diesel generator powered by a Mitsubishi S16R-Y2PTAW2-1 — a 65.4 L, 16-cylinder V-configuration turbocharged diesel at 1800 RPM. At 2 MW standby, this is the highest-rated single-unit generator in Kohler's standard REOZMD series, representing the practical upper limit of a single Mitsubishi S16R installation before moving to multi-unit paralleling arrays.
The 2000REOZMD is EPA Tier 2 certified for stationary emergency applications, UL 2200 listed, and meets NFPA 110 Level 1 requirements. It supports both 480V low-voltage and medium-voltage outputs (4,160V; 12,470V; 13,200V; 13,800V), making it suitable for direct medium-voltage distribution integration. Deployments include hyperscale data centers, large hospital campuses, university systems, and critical infrastructure where a single 2 MW source provides N+1 coverage for multiple sub-feeds.
The same Mitsubishi S16R-Y2PTAW2-1 engine platform is shared with the 1750REOZMD, but the 2000REOZMD uses a higher-output alternator (7M4054 vs. 7M4052) tuned for the 2 MW rating, with correspondingly higher fuel consumption (160.1 gph vs. 141.6 gph at full standby load).
Specifications#
| Spec | Value |
|---|---|
| Standby Power | 2,000 kW |
| Prime Power | 1,820 kW |
| Voltage options | 277/480V, 4,160V, 12,470V, 13,200V, 13,800V |
| Frequency | 60 Hz |
| Engine | Mitsubishi S16R-Y2PTAW2-1 |
| Engine type | 4-cycle turbocharged |
| Cylinders | 16 V-configuration |
| Displacement | 65.4 L (3,989 cu. in.) |
| Compression ratio | 14.0:1 |
| Rated RPM | 1,800 |
| Alternator | Kohler 7M4054 |
| Fuel | Diesel (#2 / HVO / RD) |
| Cooling | Liquid (radiator) |
| Emissions tier | EPA Tier 2 stationary emergency |
| Fuel consumption (100% standby load) | 160.1 gph |
| Fuel consumption (75% standby load) | 116.8 gph |
Service & Maintenance#
| Service | Interval |
|---|---|
| Oil change | Every 500 hours or 12 months |
| Fuel filter replacement | Every 500 hours |
| Air filter replacement | Every 1,000 hours |
| Coolant flush | Every 6,000 hours or 5 years |
| Load bank test | Annually (NFPA 110 requirement) |
| Major overhaul | Every 20,000 hours |
The Mitsubishi S16R-Y2PTAW2-1 uses four secondary cartridge oil filters. Oil pan capacity is 200 L (211 qt) dry, 230 L (243 qt) with filter change. Jacket water capacity is 170 L (44.9 gal); total radiator system capacity is 367 L (96.9 gal). The high-ambient radiator configuration supports operation up to 50°C (122°F). Four 1,150 CCA batteries power dual 24V starter motors.
Common Failure Modes#
Fuel injection pump and injector wear is the primary concern at high operating hours, typically around 10,000 hours on the S16R platform. At 2,000 kW, the fuel system delivers up to 660 L/hr (174 gph) maximum flow; maintaining clean fuel quality is critical to injector life. Quarterly fuel polishing and biocide treatment are standard for all NFPA 110 Level 1 accounts at this power level.
Turbocharger degradation at approximately 12,000 hours is an expected maintenance milestone. The exhaust flow at rated load is 544 m³/min (19,209 cfm) at 526°C (979°F) — high thermal cycling accelerates turbocharger bearing wear. Turbocharger oil supply and return lines should be inspected at every major service.
Cooling system components require attention given the large system volumes (367 L radiator, dual intercooler circuit). The charge cooler circuit (920 L/min flow) must be maintained separately from the jacket water circuit. Annual coolant testing and hose condition inspections are required.
Starting battery condition — four 1,150 CCA batteries power dual 24V starters. At 2,000 kW / 16 cylinders, engine cranking demands are high. Individual battery health testing at each annual inspection is non-negotiable.
Our service experience#
OnPoint Generators provides installation, maintenance, load bank testing, and emergency service for Kohler industrial generators throughout Northern California and the Central Valley. The 2000REOZMD is the largest single-unit generator we regularly service. At 2 MW, full-load testing requires 2 MW+ load banks and careful coordination with facility electrical teams. We provide factory-level Mitsubishi S16R service capabilities including fuel system calibration, turbocharger service, and major overhaul planning for accounts that need lifecycle management on these assets.
FAQ#
Q: What engine powers the Kohler 2000REOZMD? A: The 2000REOZMD uses a Mitsubishi S16R-Y2PTAW2-1 — a 65.4 L, 16-cylinder V-configuration turbocharged diesel at 1800 RPM, EPA Tier 2 certified for stationary emergency standby.
Q: What is the standby power rating of the 2000REOZMD? A: 2,000 kW standby and 1,820 kW prime at 0.8 power factor per Kohler spec sheet G5-369.
Q: How does the 2000REOZMD compare to the 1750REOZMD? A: Both use the same Mitsubishi S16R-Y2PTAW2-1 engine. The 2000REOZMD uses a higher-output alternator (7M4054 vs. 7M4052) and produces 220 kW more standby capacity, consuming approximately 18.5 more gph at full load. Physical size and service intervals are identical.
Q: Does OnPoint service the Kohler 2000REOZMD? A: Yes. OnPoint Generators provides maintenance, repair, and full-load bank testing for Kohler 2000REOZMD generators throughout Northern California.
