Rehlko KD2000 (Rehlko, formerly Kohler Energy)

2,000 kW standby diesel genset on the Kohler-Liebherr KD62V12, with data center rating equal to standby

Rehlko KD2000 (Rehlko, formerly Kohler Energy) is one of 10 data center generators tracked in the SecondWatt catalogue, each with specifications, lead times and indicative secondary-market pricing.

Kohler KD2000 genset dossier: 2,000 kW standby specs, KD62V12 engine details, GSA list pricing, surplus market analysis, and inspection checklist.

The Kohler KD2000 is a 2,000 kW standby / 1,810 kW prime 60 Hz genset built on the KD62V12, a 62 L V-12 from the Kohler-Liebherr engine program launched in 2016 with common-rail injection to 2,200 bar. Its Data Center Continuous rating equals the standby rating, and packages carry cULus listing, NFPA 110 Level 1 capability, and EPA Tier 2 emergency certification, burning 528.3 L/hr at full standby load. Kohler's energy business rebranded as Rehlko in September 2024. KD2000s target data center standby fleets directly, with APM603/APM802 controls and voltages from 600 V to 13,800 V; 50 Hz KD2000-E and -F variants serve EMEA and Asia. The KD-series secondary signal is a new-surplus KD3250 cluster at 839,995-979,000 USD (258-301 USD per kW) from one Wisconsin seller. The 2023 GSA schedule listed the KD2000 at 1,081,926 USD, and Rehlko booked 1.8 GW of purchase agreements in a 60-day window while doubling Liebherr engine capacity.

Why it matters

The KD2000 is the newest platform at the 2 MW node and the one with zero used-market price discovery, which makes surplus units negotiable assets without a reference price. SecondWatt can own that reference: the KD3250 surplus cluster at 258-301 USD per kW and the 1,081,926 USD GSA list anchor the ladder while Rehlko demand signals (1.8 GW in 60 days) confirm scarcity.

Who buys it

Data center operators and EPCs specify KD2000s new for standby fleets, drawn by the DCC rating equal to standby and Uptime-compliant packaging; hospitals and campuses follow. Secondary buyers currently find only new-surplus KD-series units from cancelled projects. The trigger is allocation: Rehlko's 50-80 week queue makes any surplus unit a jump-the-line asset.

Role in the data center

Standby block at 2,000 kW behind the paralleling bus with DCC rating carrying unlimited-hours outage duty, deployed in N+1 fleets at new-build data centers.

Key specifications

Technical summary

Standby: 2000 kW / 2500 kVA at 60 Hz Prime: 1810 kW / 2263 kVA Data Center Continuous: equal to standby rating 50 Hz variants: 1592-1600 kW standby Engine: KD62V12, 62 L V-12, 175 x 215 mm, common rail 2200 bar Speed: 1800 rpm (60 Hz), 1500 rpm (50 Hz) Fuel at 100% / 75% / 50% standby: 528.3 / 455.9 / 311.6 L/hr Voltages: 600 / 4160 / 12470-13800 V (60 Hz) Dimensions (radiator model): 6680 x 2915 x 3301 mm Weight: 21999 kg Emissions: EPA Tier 2, stationary emergency Controller: APM603 / APM802

Configurations and options

Sold new as open units, weather and sound-attenuated enclosures, and with sub-base tanks. Options: APM802 paralleling with 12-inch touch display, medium-voltage alternator frames through KH08431, block heaters, and remote annunciation. Surplus KD-series units observed carry 6-month factory warranties from resellers.

Compatibility and dependencies

Pairs with 2,500 kVA-class transfer or paralleling gear and bulk fuel sized to 528.3 L/hr full-load burn. The Liebherr engine has no returned-fuel cooling, reducing fuel-system heat stress. APM802 integrates paralleling natively; parts flow through the Rehlko (Kohler Power) distributor network with engines built in Colmar, France.

Pricing and availability

Comparable secondary-market band: 258–301 $ per kW. Trend: up GSA schedule pricing traces the new-unit floor: 627,615 USD list in the April 2021 schedule rising to 1,081,926 USD in the March 2023 schedule, a 72% step before the 2024-2026 demand surge. No used KD2000 has ever listed publicly; the KD-series surplus signal is the KD3250 cluster at 839,995-979,000 USD observed live in August 2026. Lead time, new: 50-80 weeks. Lead time, used or refurbished: on request. Warranty, used: 6-month factory warranty seen on KD surplus.

Lifecycle and maintenance

The KD engine program logged more than 50,000 hours of durability testing before launch, and the fleet is too young for published field failure literature; no OEM overhaul intervals or rebuild costs are public for the KD62V12. Service runs through the Rehlko dealer network with engines and parts from Liebherr Colmar, whose capacity is doubling under the June 2026 expansion. Documentation and warranty status drive surplus-unit value more than hours.

Common failure points

• Storage neglect — Insulation and fuel-system degradation on never-commissioned surplus units
• Common-rail contamination — Injector faults from dirty fuel at 2,200 bar
• Controls firmware — Outdated APM software on early builds
• Coolant system — Core corrosion on stored or coastal units
• Battery systems — Failed starts from aged banks on stored units

Inspection checklist

Provenance — fleet launched 2017; verify build year, commissioning status, and warranty transfer on any surplus unit Hours — most surplus KD-series units show under 50 hours; verify meter against factory test logs Storage — verify heater power, rotation logs, and desiccant service; young units fail from storage neglect, not wear Common-rail system — verify fuel cleanliness; 2,200 bar injection punishes contamination Injectors — read APM fault history; require factory or dealer service records Coolant — verify service records and inspect cores; no-return-fuel design shifts heat load to coolant circuits Generator end — megger the KH-frame stator; below 5 megohms warrants investigation on stored units Controls — confirm APM603 versus APM802 and firmware currency with a Rehlko dealer Voltage configuration — verify 600 V, 4,160 V, or 13.8 kV build matches the destination plant Emissions nameplate — Tier 2 emergency only; no KD2000 Tier 4 variant exists, so strict districts need KD2500-4/KD3250-4 Batteries and charger — verify bank age; replace past 4 years regardless of hours Enclosure and tank — verify UL 142 certification and containment where fitted Warranty — surplus resellers offer 6-month factory warranties; get transfer terms in writing Load test — 4-hour witnessed run to 2,000 kW at temperature before payment Records — factory test certificates and storage logs; the young fleet means documentation is the entire condition story

Procurement channels

New units through Rehlko dealer allocations; surplus KD-series units surface from cancelled projects through resellers such as Green Industrial (Wisconsin) on Surplus Record, eBay, and MachineryTrader, carrying 6-month factory warranties. No used KD2000 channel exists yet; SecondWatt inquiry flow is the practical route.

Regional notes

60 Hz North American allocations dominate; 50 Hz E and F variants serve EMEA and Southeast Asia. Engines build in Colmar, France and Bulle, Switzerland, so tariff and freight exposure differs from domestic-built rivals. Surplus supply so far is US-located.