Kohler · KD Series (Industrial Diesel)

Kohler KD3000

3000 kW standby / 2720 kW prime · Diesel · Liquid-cooled

3000 kW diesel industrial standby generator. Upper-range KD Series platform for data centers, healthcare, and mission-critical infrastructure.

Kohler Kohler KD3000 generator — specifications and details
Standby power
3000 kW / 2720 kW prime
Voltage options
277/480V
Frequency / Phase
60 Hz · 3-phase
Engine
Kohler KD83V16 · 83L
EPA / Emissions
Tier 2
Alternator
Kohler KH08590TO4D
Data CentersHealthcareManufacturingCommercialGovernment
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Overview#

The Kohler KD3000 is a 3000-kilowatt diesel industrial standby generator from Kohler's KD Series platform. Approaching 3 MW, it serves the largest data center campuses, major hospital systems, and heavy industrial facilities. The alternator features two-thirds pitch windings for clean voltage output. The KD Series uses Kohler-designed engines and permanent-magnet pilot exciter alternators.

KD Series platform#

The KD Series is Kohler's large industrial diesel generator line, covering 800 to 4000 kW. Designed for mission-critical facilities, every KD Series unit carries UL 2200 listing and meets NFPA 110 Level 1 requirements when equipped with the necessary accessories. The upper-range KD models feature two-thirds pitch windings and skewed stators for superior voltage waveform quality.

Our service experience#

PowerGen provides installation, maintenance, and emergency service for Kohler KD Series generators throughout Northern California. Our technicians are experienced with large diesel platforms in the multi-megawatt class, including load bank testing, fuel system maintenance, and cooling system service for high-capacity industrial units.

Engineering specifications

Acoustic

Sound @ 7m, full load
99 dBA
Enclosure
Open

Fuel system & runtime

Fuel use @ full load
200.5 GPH
Fuel use @ 75% load
176.8 GPH
Fuel use @ 50% load
120.4 GPH

Photos

Kohler KD3000 — product photo

Documents & downloads

Spec sheets & manuals

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Estimate runtime for the Kohler KD3000

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

1.3 hours(0.1 days)

Fuel consumption ≈ 154.67 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 Kohler KD3000 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.

ComponentSymptomTypical hoursSeverity
Fuel quality / degradationInjector fouling, hard starting, black smoke under load4,380+moderate
TurbochargerPower loss, excessive exhaust smoke, oil at turbo seals15,000+moderate
Cooling system (hoses / thermostat)Overtemperature fault, coolant loss, high EGT10,000+moderate
Battery (starting)Slow crank, failed exercise, low voltage alarm8,760+minor

Frequently Asked Questions

What is the standby rating of the Kohler KD3000?
Per the Kohler spec sheet, the KD3000 is rated at 3000 kW / 3750 kVA standby and 2720 kW / 3400 kVA prime continuous at 0.8 power factor, 60 Hz, 1800 RPM.
Is the Kohler KD3000 EPA Tier 4 certified?
No. The KD3000 is EPA certified for stationary emergency use. Tier 4 Final variants are available in separate KD Series models designated with a -4 suffix.
What alternator type does the KD3000 use?
The KD3000 uses a brushless, permanent-magnet pilot exciter alternator with two-thirds pitch windings for superior voltage waveform quality — Kohler's standard for the larger KD Series industrial diesel platform.

Compatible equipment

Engine

Transfer switches

More in the KD Series (Industrial Diesel)

Kohler-engineered megawatt-class diesel gensets from 900 to 4000 kW for mission-critical facilities.

View all 18models in this series →

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