100 kW standby / 90 kW prime · Natural Gas / LPG / Dual Fuel (NG/LPG) · Liquid-cooled
100 kW gaseous-fueled commercial standby generator. Upper-mid-range industrial gaseous unit for larger commercial facilities on natural gas or propane.
The Kohler KG100 is a 100-kilowatt commercial standby generator and the first turbocharged unit in the KG gaseous lineup. Below it, the KG60 and KG80 use naturally-aspirated engines; at 100 kW and above, Kohler transitions to forced-induction platforms that deliver more power from a similar footprint.
This is the sweet spot for medium-to-large commercial facilities: full-service hotels, large retail centers, multi-family residential buildings, light industrial operations, and non-critical hospital loads where gaseous fuel is preferred over diesel.
The entire KG40-KG125 line shares Kohler's 6.2L KG6208 V8. The KG40 and KG60 use the naturally-aspirated KG6208; the KG80, KG100, and KG125 add a turbocharger and aftercooler (KG6208TSD/THD) to increase output from the same displacement:
Higher power density — same engine block delivers 80-125 kW with forced induction
Better fuel efficiency under load (turbo recovers exhaust energy)
Additional service items — turbo bearings, intercooler/charge-air cooler, and post-shutdown idle requirements are new wear and operating considerations not present on the NA units
The KG100 turbo platform requires slightly different attention than the NA KG40/KG60. We add turbo inspection (bearing play, oil drain condition, intercooler hose integrity) to the annual service checklist. Otherwise, the ignition and coolant service patterns mirror the rest of the KG line. Operators stepping up from a KG60 should plan for proper post-shutdown idle to protect the turbo bearing.
Engineering specifications
Physical
Length
138.8 in
Width
45.4 in
Height
65.5 in
Wet weight
3,652 lb
Acoustic
Sound @ 7m, full load
69 dBA
Enclosure
Sound-attenuated
Fuel system & runtime
BTU/hr @ full load
1,473,000
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Configure your Kohler KG100
Lock the enclosure, fuel system, transfer switch, and add-ons — we'll confirm pricing, availability, and lead time within one business day. Prefer a free-form quote? That option is still here.
Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.
Estimate runtime on this tank
Fuel demand at 75% load
1,050,000 BTU/hr≈ 1050.0 cf/min @ 1,000 BTU/cf
On utility natural gas the runtime is generally unlimited provided the supply line and meter can deliver this BTU/hr at the engine's required inlet pressure (typically 5–14" WC residential, up to 5 psi commercial). Confirm against the OEM's published fuel-pressure spec.
Service intervals
Manufacturer-recommended intervals for the Kohler KG100 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 4000 hours
Air filter
Every 1000 hours
Spark plugs
Every 2000 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.
Component
Symptom
Typical hours
Severity
Turbocharger bearings / seals
Oil in intake, blue smoke, reduced power output
12,000+
moderate
Spark plugs / ignition coils
Misfire under load, cylinder dropout codes
2,000+
minor
Intercooler hoses (if equipped)
Boost leak, reduced power, audible hiss
8,000+
minor
Coolant thermostat
Overcooling at light load, slow warmup, high fuel consumption
10,000+
minor
Battery (starting)
Slow crank, low voltage during exercise
8,760+
minor
Parts cross-reference
starting Battery
Group 31 (recommended)
Frequently Asked Questions
What is the standby power rating of the Kohler KG100?
The KG100 is rated 100 kW standby (90 kW prime) at 60 Hz. It's the first turbocharged unit in the KG line, offering significantly more power density than the naturally-aspirated KG80.
What engine is in the Kohler KG100?
The KG100 uses the Kohler KG6208THD — a 6.2L V8, turbocharged and aftercooled, at 1800 RPM. The same KG6208 V8 platform is used across the KG40-KG125 lineup; KG40-KG60 are naturally aspirated, KG80-KG125 add the turbo and charge-air cooler for higher output.
Is the KG100 louder than the KG60 or KG80?
Sound levels are similar across the KG40-KG125 line because they share the same engine platform and 1800 RPM speed. Refer to the Kohler spec sheet (G4-287) for the exact dBA values for the enclosure and load condition you need.
What ATS sizing for the KG100?
At 480V three-phase: 200A ATS. At 208V three-phase: 400A ATS. Common pairings: Kohler KCS, ASCO 300 or 7000 Series, Eaton ATC-900.
