Kohler 2000REOZMD Generator for Sale: 2000kW Tier 2 Diesel — In Stock at PGE

What Makes the Kohler 2000REOZMD a Contender at 2000kW

The Kohler 2000REOZMD sitting in our Santa Clarita yard right now — SKU GS4806 — is a 2000kW Tier 2 diesel generator set with a weather enclosed, sound attenuated enclosure, rated 480V/3-phase/60Hz. It is pre-owned, it is real, and it is available.

At 2000kW, you are in the territory where three manufacturers dominate: Caterpillar with the 3516 platform, Cummins with the QSK60, and Kohler with the REOZMD. Most buyers default to CAT or Cummins because that is what they know. The Kohler deserves a harder look, and here is why.

The engine inside the Kohler 2000REOZMD is an MTU 16V4000 G63. If that sounds familiar, it should. MTU (now part of Rolls-Royce Power Systems) builds the 4000 series engine for standalone gensets under their own brand and supplies the same platform to Kohler for integration into the REOZMD package. The 16V4000 is a 76-liter, 16-cylinder diesel with a track record that stretches across European data centers, marine applications, and military installations. It is not a question mark. This engine has been running at 2000kW loads globally for decades.

What 2000kW buys you in practical terms: enough standby power to back up a 15-story commercial building, a mid-size hospital campus, a 2-3MW data center hall, or a large manufacturing facility. It is also the power level where large retail distribution centers, water treatment plants, and municipal facilities operate. At 480 volts, this Kohler 2000REOZMD delivers 2,500 kVA and roughly 3,007 amps at full load. That is serious current, and the 480V configuration is standard for North American industrial switchgear and paralleling systems.

The Tier 2 EPA emissions rating on this unit is a significant practical advantage for standby applications. Tier 2 generators are legal for emergency standby use in most US jurisdictions without diesel particulate filters, selective catalytic reduction, or any of the aftertreatment hardware that comes with Tier 4 Final units. No aftertreatment means no DPF regeneration cycles, no DEF fluid consumption, no catalysts to replace, and dramatically simpler maintenance. For a unit that runs 50-200 hours per year on test and during outages, Tier 2 is the sweet spot. You get legal compliance without the cost and complexity of emissions hardware designed for prime power applications running thousands of hours annually.

The weather enclosed, sound attenuated enclosure on this specific GS4806 unit matters more than most buyers initially appreciate. A 2000kW open skid diesel generator produces approximately 100-105 dB(A) at 7 meters. That is louder than a chainsaw. Sound attenuation on a Kohler 2000REOZMD brings noise levels down to approximately 75-80 dB(A) at 7 meters, depending on the attenuation level — a perceived loudness reduction of roughly 75%. For hospitals, data centers, and any commercial installation near occupied buildings or residential property lines, this is often the difference between passing and failing a noise ordinance. For a deeper look at how enclosure types affect installation, see our guide on containerized vs enclosed vs open skid generators.

Kohler vs CAT vs Cummins: The 2000kW Showdown

Let’s be direct about the competitive landscape, because anyone shopping at 2000kW is comparing these three platforms.

Caterpillar 3516: The 3516 is the most common 2000kW diesel genset on the used market. The 69.1-liter V-16 engine is everywhere. CAT’s dealer network is the largest in the industry. Parts availability is outstanding. The downside: CAT’s dominance at this power level means used 3516 units are priced accordingly, and availability of sound-attenuated enclosures varies. Many used CAT 3516 units are open skid or containerized. PGE has the CAT 3500 series in stock, including a containerized 3516C 2000kW unit (GS4826).

Cummins QSK60: The 60-liter V-16 QSK60 is Cummins’ answer to the 3516. Excellent fuel efficiency, strong dealer support through Cummins distributors, and the PowerCommand control system is well-regarded. PGE currently has two Cummins QSK60-powered 2000kW units in inventory — the GS4864 and GS4845 — both Tier 2, both 480V. Read more in our Cummins QSK60 generator guide.

Kohler 2000REOZMD: Here is where the Kohler wins. First, the MTU 16V4000 G63 engine delivers slightly better specific fuel consumption than the CAT 3516 at comparable loads, which matters if your facility does extended runs or regular load bank testing. Second, Kohler’s sound-attenuated enclosures at the 2000kW level are typically quieter than CAT equivalents at the same power rating — Kohler has invested heavily in acoustic engineering for their large industrial packages. Third, and this is a practical difference that gets overlooked: the Kohler Decision-Maker 3500 controller includes built-in paralleling capability. On a CAT unit, you are adding EMCP paralleling modules or third-party paralleling switchgear. On a Cummins, the PowerCommand MasterControl system handles it but often requires additional hardware. The Kohler DM3500 can parallel with other Kohler units or with the utility bus out of the box.

The trade-off is honest: Kohler’s dealer and service network for large industrial gensets is smaller than CAT’s or Cummins’. If your facility is in a major metro area, Kohler has coverage. If you are in a remote location, parts and factory-trained technicians may take longer to reach you. That said, the MTU 16V4000 engine underneath has its own parts and service network through MTU/Rolls-Royce distributors, which is a second source that CAT and Cummins buyers do not have.

On the used market, Kohler 2000kW units are less common than CAT 3516 or Cummins QSK60 units. Fewer units available means less price competition among sellers, but it also means buyers have fewer options when they specifically need this platform. When a clean, sound-attenuated Kohler 2000REOZMD like our GS4806 hits the market, it tends to move quickly — especially when it has the spec sheet that data center and healthcare buyers are looking for.

Some facility specifications — particularly in healthcare and Tier III/IV data centers — specifically name Kohler as an approved manufacturer alongside CAT and Cummins. If your project spec calls for Kohler, finding a 2000kW unit in this configuration is not something you can do on any given Tuesday. This one is here now.

What to Know Before Buying a Used Kohler 2000kW Generator

Buying a pre-owned 2000kW generator is a significant capital decision regardless of brand. Here is what matters specifically when the unit is a Kohler 2000REOZMD.

Hours and maintenance history. On the MTU 16V4000 G63, the major overhaul interval is typically 24,000-30,000 hours for standby-rated units. Most pre-owned 2000kW standby generators on the market have between 200 and 3,000 hours. A unit with low hours that has been on a regular exercise and maintenance schedule is worth more than a unit with the same hours that sat idle for years between runs. Ask for maintenance logs. Ask when the fuel system was last serviced. Ask about coolant analysis and oil analysis history. PGE can provide the service documentation we have for the GS4806 — call (818) 484-8550 and ask to speak with our sales team.

Load testing. Any reputable dealer — and PGE is one — will load test a 2000kW unit before sale or arrange for load testing at delivery. A 2000kW load bank test verifies that the engine reaches full power, the alternator handles the load without excessive temperature rise, and all protective systems function correctly. Do not skip this step. It is the single most important verification you can do on a used genset.

Fuel system condition. Diesel fuel degrades over time. A 2000kW generator that has been sitting with fuel in the tanks needs a fuel polishing assessment before it goes into service. The MTU 16V4000 uses a common rail fuel injection system — contaminated fuel can damage injectors that cost $2,000-$4,000 each, and there are 16 of them. This is not unique to Kohler, but it is worth $32,000-$64,000 of your attention.

The Decision-Maker 3500 Controller and Parts Reality

The Kohler Decision-Maker 3500 (DM3500) controller is Kohler’s top-tier generator management system. It handles engine management, alternator monitoring, automatic transfer switch communication, and — critically — paralleling. The DM3500 is the Kohler equivalent of CAT’s EMCP 4 series or Cummins’ PowerCommand 3.3.

What makes the DM3500 relevant to used buyers: this controller supports Kohler’s remote monitoring platform, it handles load sharing and paralleling without external modules, and it stores fault history and run-hour data that tells you the real story of the unit’s life. When PGE evaluates a Kohler genset, the DM3500 data is one of the first things we pull.

The parts conversation for Kohler at 2000kW is nuanced. Kohler Power Systems has fewer authorized distributors in North America than Caterpillar or Cummins. For the controller, switchgear, and Kohler-specific components (enclosure panels, base tank components, Kohler-branded filters), you are working through Kohler’s distribution network. Lead times can run longer than CAT or Cummins equivalents.

The engine is a different story. The MTU 16V4000 G63 has its own parts pipeline through MTU America (Rolls-Royce Power Systems). MTU distributors stock filters, injectors, turbos, and overhaul kits independently of Kohler. This dual parts path — Kohler for the genset package, MTU for the engine — actually gives Kohler 2000REOZMD owners a flexibility advantage that single-source platforms do not have. If the Kohler distributor is backordered on a fuel filter, the MTU distributor may have the identical part under a different part number on the shelf.

Sound-Attenuated Enclosure and Installation Considerations

The weather enclosed, sound attenuated configuration on our Kohler 2000REOZMD GS4806 is one of its strongest selling points. Here is what that enclosure means for your installation.

Sound-attenuated enclosures at the 2000kW level use double-wall steel panels with acoustic insulation, lined intake and exhaust air plenums, and critical-grade exhaust silencers. The result is a significant noise reduction compared to an open skid or basic weather enclosure. For facilities subject to municipal noise ordinances — and at 2000kW, nearly every urban or suburban installation is — the sound-attenuated enclosure may be the difference between getting a permit and not getting one.

The enclosure also means the unit is weather-tight. For outdoor pad-mounted installations, which are the most common deployment at this power level, weather protection eliminates the need for a generator building. You pour a concrete pad, set the unit with a crane, connect fuel and electrical, and you are operational. Compare that to building a fire-rated generator room per NFPA 110 for an indoor open skid installation, which can add $100,000-$250,000 to the project. The math favors the enclosed unit almost every time. Our enclosure comparison guide breaks this down with real cost numbers.

One installation consideration specific to enclosed 2000kW units: physical footprint. A Kohler 2000REOZMD with the sound-attenuated enclosure has a footprint of approximately 25 feet long by 9 feet wide by 11 feet tall, plus clearance requirements on all sides for cooling air intake and exhaust air discharge. Plan for a pad that gives you 5-foot minimum clearance to building walls (per NFPA 37) and adequate space for maintenance access doors to swing open fully.

Weight is also a factor. A 2000kW enclosed genset weighs approximately 40,000-50,000 lbs depending on configuration and fuel tank capacity. Your concrete pad needs to be engineered for that point load, and your rigging plan needs a crane rated accordingly. This is standard for any 2000kW installation, but if you are replacing a smaller unit, your existing pad may need structural verification.

2000kW Generators in Stock at PGE

PGE currently stocks multiple 2000kW-class diesel generators. The Kohler 2000REOZMD (GS4806) is the unit this article focuses on, but buyers comparing at this power level should also know about our Cummins QSK60 DQKAB 2000kW units (GS4864 and GS4845), our CAT 3516C 2000kW containerized unit (GS4826), and our CAT 3516DITA 1850kW high-voltage open skid (GS4851). The comparison table below breaks down the key differences.

If you are spec’d for Kohler, or if the sound-attenuated enclosure and DM3500 controller align with your project requirements, the GS4806 is the unit to look at. Call PGE at (818) 484-8550 for full specs, photos, pricing, and load test scheduling.

Have a generator to trade in or sell outright? PGE buys industrial generators nationwide. Visit our sell your equipment page or call us directly.