Kohler · KD Series (Industrial Diesel)

Kohler KD1750

1750 kW standby / 1580 kW prime · Diesel · Liquid-cooled

1750 kW diesel industrial standby generator. KD Series platform for data centers, healthcare, and mission-critical infrastructure.

Kohler Kohler KD1750 generator — specifications and details
Standby power
1750 kW / 1580 kW prime
Voltage options
277/480V
Frequency / Phase
60 Hz · 3-phase
Engine
Kohler KD45V20 · 45L
EPA / Emissions
Tier 2
Alternator
Kohler KH06721TO4D
Data CentersHealthcareManufacturingCommercialGovernment
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Overview#

The Kohler KD1750 is a 1750-kilowatt diesel industrial standby generator from Kohler's KD Series platform. At 1.8 MW, it is positioned for large-scale data centers, hospital complexes, and industrial campuses that require substantial emergency backup capacity. 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. Hurricane-rated enclosures with 186 mph wind load ratings are available across the platform.

Our service experience#

OnPoint Generators provides installation, maintenance, and emergency service for Kohler KD Series generators throughout Northern California. Our technicians are experienced with large diesel platforms in the 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
98 dBA
Enclosure
Open

Fuel system & runtime

Fuel use @ full load
121.7 GPH
Fuel use @ 75% load
96.2 GPH
Fuel use @ 50% load
68.8 GPH

Photos

Kohler KD1750 — product photo

Documents & downloads

Spec sheets & manuals

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Estimate runtime for the Kohler KD1750

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

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Estimated runtime

2.1 hours(0.1 days)

Fuel consumption ≈ 93.88 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 KD1750 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 KD1750?
Per the Kohler spec sheet, the KD1750 is rated at 1750 kW / 2188 kVA standby and 1580 kW / 1975 kVA prime continuous at 0.8 power factor, 60 Hz, 1800 RPM.
Is the Kohler KD1750 EPA Tier 4 certified?
No. The KD1750 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 KD1750 use?
The KD1750 uses a brushless, permanent-magnet pilot exciter alternator — Kohler's standard for the KD Series large industrial diesel platform.

Compatible equipment

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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