The Kohler 100REZGD is a 100-kilowatt LPG industrial standby generator in an enclosed configuration. Rated at 77-100 kW standby depending on voltage, it uses a General Motors V8 engine paired with a brushless permanent-magnet alternator at 1800 RPM. This unit is EPA certified for stationary emergency applications and is suited for commercial facilities, healthcare, and institutional buildings.
At this capacity, gaseous generators eliminate on-site fuel storage requirements and SPCC compliance obligations. Propane offers unlimited runtime as long as the supply is maintained and avoids the fuel degradation issues common with low-runtime standby diesel units. The trade-off is dependence on propane delivery infrastructure during extended outages.
OnPoint Generators provides installation, maintenance, and emergency service for Kohler gaseous generators throughout Northern California. The GM V8 platform in the RZG series is a well-understood engine with broad parts availability, and we structure PM programs around annual ignition and coolant system inspections.
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.
Manufacturer-recommended intervals for the Kohler 100REZGD under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.
Oil & filter
Every 200 hours or 12 months
Coolant change
Every 2000 hours
Air filter
Every 500 hours
Spark plugs
Every 500 hours
Major overhaul
≈ 6,000 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
Spark plugs / ignition
Misfire under load, rough idle, cylinder dropout
500+
minor
Fuel pressure regulator / vaporizer
Hard starting, gas pressure fault, erratic idle
6,000+
moderate
Coolant thermostat
Overcooling at light load, high fuel consumption
8,000+
minor
Battery (starting)
Slow crank, failed exercise
8,760+
minor
Frequently Asked Questions
What is the standby rating of the Kohler 100REZGD?
The 100REZGD is rated 77-100 kW standby (77-125 kVA) depending on voltage configuration, operating on LPG at 60 Hz.
What fuel does the Kohler 100REZGD use?
The 100REZGD operates on LPG (propane). Dual-fuel variants are also available in the RZG line.
What is the difference between RZX and REZX models?
RZX designates the open-frame (skid-mounted) configuration, while REZX is the enclosed (sound-attenuated or weather-protective) version. Both use the same engine-alternator package; the difference is the enclosure.
100 kW commercial standby on NG/LP for mid-size commercial, multi-family, and light industrial with reliable gas supply.
100 kW gaseous-fueled commercial standby generator. Upper-mid-range industrial gaseous unit for larger commercial facilities on natural gas or propane.
