Kohler · REOZ Series (Diesel Industrial Large)

Kohler 500REOZVB

505 kW standby / 450 kW prime · Diesel · Liquid-cooled

500 kW diesel commercial/industrial standby generator powered by Volvo. VB-frame variant for hospitals, data centers, and large commercial facilities.

Kohler Kohler 500REOZVB generator — specifications and details
Standby power
505 kW / 450 kW prime
Voltage options
277/480V, 120/208V
Frequency / Phase
60 Hz · 3-phase
Engine
Volvo TAD1641GE · 16.12L
EPA / Emissions
Tier 2
Alternator
Kohler

Overview#

The Kohler 500REOZVB is a 500-kilowatt diesel standby generator powered by a Volvo 16.12-litre inline-six engine at 1800 RPM. The VB suffix designates a specific alternator frame, distinguishing this model from the 500REOZVC variant. Both serve the same 500 kW class with Volvo power but offer different alternator configurations.

Our service experience#

OnPoint Generators services Kohler REOZ diesel generators throughout Northern California. We service Volvo-powered units with annual NFPA 110 maintenance, semi-annual inspections, and load bank testing up to full rated capacity.

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Estimated runtime

7.3 hours(0.3 days)

Fuel consumption ≈ 27.27 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 500REOZVB 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

Frequently Asked Questions

What engine powers the Kohler 500REOZVB?
The 500REOZVB uses a Volvo 16.12-litre inline-6 turbocharged diesel engine running at 1800 RPM with Tier 2 emissions certification.
What is the difference between the 500REOZVB and the 500REOZVC?
Both use Volvo engines in the 500 kW class but differ in alternator frame size and available voltage/phase configurations.
Does OnPoint service the Kohler 500REOZVB?
Yes. OnPoint Generators provides maintenance, repair, and load bank testing for Kohler REOZ diesel generators throughout Northern California.

Why we recommend Kohler

Kohler is our primary recommendation for commercial standby power. We sell and service the full Kohler line — RCA residential, RCL light commercial, KG industrial diesel, and REOZ large-frame — and our technicians are factory-trained on every product family.

We are an authorized Kohler dealer with factory-trained technicians. Kohler is the majority of our new generator sales today, spanning residential through large industrial. Our parts inventory is stocked for same-day Kohler service.

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