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Home›Kohler›Kohler 500REZK

Kohler 500REZK Generator Set

The Kohler 500REZK is a 500 kW (625 kVA) natural gas / LP standby generator set powered by a Siemens SGE-24SL engine. It is available at 120/208 V, 127/220 V, 139/240 V, 240/416 V, 277/480 V and 347/600 V, 3-phase and 60 Hz. It holds about 86 L (22.7 gal) of oil and 75 L (19.8 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 2 batteries rated 925 CCA at 12 V. The set measures 4104×1987×2152 mm (161.6×78.2×84.7 in). The same SGE-24SL engine also powers generator sets from Siemens.

500 kW
Standby
2.0 L
Displacement
86.0 L
Oil capacity
5
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Specifications

Fuelnatural gas / LP
Frequency60.0 Hz
Standby power500 kW
Standby kVA625
Prime power435 kW
EmissionsEPA-Certified
ControllerDecision-Maker 8000
Oil capacity86.0 L
AlternatorPMG
Voltage options120/208 V, 127/220 V, 139/240 V, 240/416 V, 277/480 V, 347/600 V
Phase3
Power factor0.8
Battery cranking925 CCA
Battery voltage12 V
Battery quantity2
Coolant capacity75 L
Max ambient50 °C
Dimensions (L×W×H)4104×1987×2152 mm

Engine

Siemens SGE-24SL
Oil capacity86.0 L
Coolant capacity24.0 L
Displacement2.0 L
AspirationNatural gas/Biogas
Rated speed1500 rpm

Maintenance & consumables

for the Siemens SGE-24SL
ItemSpecCapacityPart #Interval
Fuel filter—
Oil filter—

Service specifications

30
TypeItemValueUnitCondition
Other10 in. weld flange bolt circle diameter B361.95mm (14.25 in.)
Other10 in. weld flange outside diameter C406.4mm (16.0 in.)
Other10 in. weld flange quantity of bolts / bolt hole diameter D12, 25.40mm (1.00 in.)
Other12 in. weld flange bolt circle diameter B431.80mm (17.00 in.)
Other12 in. weld flange outside diameter C482.6mm (19.0 in.)
Other12 in. weld flange quantity of bolts / bolt hole diameter D12, 25.40mm (1.00 in.)
Other14 in. weld flange bolt circle diameter B476.25mm (18.75 in.)
Other14 in. weld flange outside diameter C533.4mm (21.0 in.)
Other14 in. weld flange quantity of bolts / bolt hole diameter D12, 28.58mm (1.13 in.)
Other16 in. weld flange bolt circle diameter B539.75mm (21.25 in.)
Other16 in. weld flange outside diameter C596.9mm (23.5 in.)
Other16 in. weld flange quantity of bolts / bolt hole diameter D16, 28.58mm (1.13 in.)
Other18 in. weld flange bolt circle diameter B577.85mm (22.75 in.)
Other18 in. weld flange outside diameter C635.0mm (25.0 in.)
Other18 in. weld flange quantity of bolts / bolt hole diameter D16, 31.75mm (1.25 in.)
Other20 in. weld flange bolt circle diameter B635.00mm (25.00 in.)
Other20 in. weld flange outside diameter C698.5mm (27.5 in.)
Other20 in. weld flange quantity of bolts / bolt hole diameter D20, 31.75mm (1.25 in.)
Other5 in. weld flange bolt circle diameter B215.90mm (8.50 in.)
Other5 in. weld flange outside diameter C241.30mm (9.50 in.)
Other5 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
Other6 in. weld flange bolt circle diameter B254.0mm (10.0 in.)
Other6 in. weld flange outside diameter C279.4mm (11.0 in.)
Other6 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
Other8 in. weld flange bolt circle diameter B298.45mm (11.75 in.)
Other8 in. weld flange outside diameter C342.9mm (13.5 in.)
Other8 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
OtherWeld flange angle A (10, 12, 14 in. nominal pipe size)30deg.
OtherWeld flange angle A (16, 18, 20 in. nominal pipe size)22.5deg.
OtherWeld flange angle A (5, 6, 8 in. nominal pipe size)45deg.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

How many kW is the Kohler 500REZK?

The Kohler 500REZK is rated 500 kW standby (625.0 kVA).

What engine is in the Kohler 500REZK?

The Kohler 500REZK is powered by the Siemens SGE-24SL engine.

What kind of fuel does the Kohler 500REZK run on?

The Kohler 500REZK runs on natural gas / LP.

What is the oil capacity of the Kohler 500REZK?

The Siemens SGE-24SL engine in the Kohler 500REZK has an oil capacity of 86.0 liters.

Which alternator is fitted to the Kohler 500REZK?

The Kohler 500REZK uses a PMG alternator.

Parts

7
Part #DescriptionQtySystem
76.50.134Mechanical air flow restriction detectorSensor buy
76.50.266Electric airflow restriction detectorSensor buy
76.50.319Mechanical airflow restriction detectorSensor buy
76.50.321Electric air flow restriction detectorSensor buy
76.64.605GIS CSA ignition unit (up to 70ºC)Service part / kit buy
76.64.607GIS ignition unit (up to 60ºC)Service part / kit buy
SGE-24SLNatural gas, Biogas, Flare, APG, Syngas, LPG-PropaneService part / kit Amazon eBay

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Spec sheet — g4256 (Kohler)Reference (Kohler)Reference — G6-39 0918AZ (Kohler)Reference — Kohler-Gas Generators Brochure (Kohler)Owner's manual — tp7019 (Kohler)Parts manual — tp7016 (Kohler)Parts manual — tp7024 (Kohler)Service manual — TP-6994 1018B (Kohler)Service manual — adv8827 (Kohler)Service manual — tp6995 (Kohler)Service manual — tp7011 (Kohler)Service manual — tt1673 (Kohler)