HomeKohlerKohler 800REOZDE

Kohler 800REOZDE Generator Set

The Kohler 800REOZDE is a 725 kW (906 kVA) Diesel standby generator set powered by a MTU 12V2000 G85 R123-8A37 engine. It is available at 240/416 V, 277/480 V, 220/380 V, 230/400 V and 347/600 V, 3-phase and 60 Hz. It holds about 67 L (17.7 gal) of oil and 310 L (81.9 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses Two battery rated 1150 CCA at 12 V. The set measures 4749×1929×2364 mm (187.0×75.9×93.1 in).

725 kW
Standby
23.9 L
Displacement
67.0 L
Oil capacity
3
Document types

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power725 kW
Standby kVA906
Prime power680 kW
EmissionsTier 2
ControllerDecision-Maker 3000, Decision-Maker 550, Decision-Maker 6000
Oil capacity67.0 L
Alternator5M4034, 5M4036, 5M4038, 5M4166, 5M4278 (4-pole, Class Class H, Synthetic, Nonhygroscopic (NEMA MG1) insulation)
Voltage options240/416 V, 277/480 V, 220/380 V, 230/400 V, 347/600 V
Phase3
Power factor0.8
Battery cranking1150 CCA
Battery voltage12 V
Battery quantityTwo
Coolant capacity310.0 L
Max ambient50 °C
Dimensions (L×W×H)4749×1929×2364 mm
Wet weight6123 kg

Engine

MTU 12V2000 G85 R123-8A37
Oil capacity67.0 L
Coolant capacity130.0 L
Displacement23.9 L
Aspiration4-Cycle, Turbocharged, Intercooled
Rated speed1800 rpm

Maintenance & consumables

for the MTU 12V2000 G85 R123-8A37
ItemSpecCapacityPart #Interval
Air filterDry
Fuel filter1, Secondary
Oil filter2, Cartridge
Coolant310.0 L
Oil77.0 L

Service specifications

40
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.)
OtherFrequency regulation, no-load to full-loadIsochronous
OtherFrequency regulation, steady state0.25%
OtherMax. restriction of cooling air, intake and discharge side of radiator0.125 (0.5)kPa (in. H2O)
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.
PressureMax. return line restriction (fuel)50 (14.7)kPa (in. Hg)
PressureMaximum allowable back pressure (exhaust)8.5 (2.5)kPa (in. Hg)60 Hz
PressureMin./max. fuel pressure at engine supply connection--30/50 (--8.8/14.8)kPa (in. Hg)
SpeedRated rpm1800 (60 Hz); 1500 (50 Hz)rpm
TemperatureAmbient temperature (radiator system)50 (122)_C (_F)enclosure with enclosed silencer reduces capability by 5_C (9_F)
TemperatureExhaust temperature at rated kW, dry exhaust580 (1076) (60 Hz); 565 (1049) (50 Hz)_C (_F)at rated kW, dry exhaust
VoltageVoltage regulation, no-load to full-load (alternator)0.25%

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

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
Fuel#2 DieselFuel supply line min. ID 12 mm (0.5 in.); fuel return line min. ID 6 mm (0.25 in.); max. fuel flow 480 Lph (127 gph)

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

What size generator is the Kohler 800REOZDE?

The Kohler 800REOZDE is rated 725 kW standby (906.0 kVA).

What engine is in the Kohler 800REOZDE?

The Kohler 800REOZDE is powered by the MTU 12V2000 G85 R123-8A37 engine.

What kind of fuel does the Kohler 800REOZDE run on?

The Kohler 800REOZDE runs on Diesel.

How much oil does the Kohler 800REOZDE take?

The MTU 12V2000 G85 R123-8A37 engine in the Kohler 800REOZDE has an oil capacity of 67.0 liters.

What is the coolant capacity of the Kohler 800REOZDE?

The Kohler 800REOZDE cooling system holds 310 liters (81.9 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the prime power rating of the Kohler 800REOZDE?

The Kohler 800REOZDE is rated 680 kW prime (850 kVA), against 725 kW standby.

What voltage does the Kohler 800REOZDE produce?

The Kohler 800REOZDE is offered in 240/416 V, 277/480 V, 220/380 V, 230/400 V, 347/600 V, 3-phase.

What size battery does the Kohler 800REOZDE need?

The Kohler 800REOZDE uses Two batteryies, 12 V each, 1150 CCA, per the manufacturer specification sheet.

Which alternator is fitted to the Kohler 800REOZDE?

The Kohler 800REOZDE uses a 5M4034, 5M4036, 5M4038, 5M4166, 5M4278 alternator. It has 4 poles. Insulation class Class H, Synthetic, Nonhygroscopic (NEMA MG1).

Parts

32model family
Part #DescriptionQtySystem
279738Element, primary1Air filter Amazon eBay KuduParts $248.00
279739Element, air cleaner, inner1Air filter Amazon eBay FridayParts $165.75
347957Hose, 45 deg elbow, 8.00 in. ID1Hose buy
A-279714Air cleaner assembly (450/500kW HD)1Air filter buy
GM13224Filter, oil1Oil filter Amazon eBay $60.00
GM23518Hose, hump, 8.00 in. ID1Hose buy
GM23519Hose, 90 deg elbow, 8.00 in. ID1Hose buy
GM28302Hose, straight air, 8.00 in. ID1Hose buy
GM28399Air cleaner assembly2Air filter FridayParts $115.63 KuduParts $153.00
GM30405Hose, reducer1Hose buy
GM35176Belt, alternator1Belt Amazon eBay $25.00
GM35177Thermostat3Thermostat buy
GM35178O-ring, thermostat3Seal buy
GM35810Fan belt kit1Belt Amazon eBay
GM41469Filter, fuel1Fuel filter Amazon eBay $50.00
GM67194Hose, reducer1Hose buy
GM69932Air cleaner assembly1Air filter FridayParts $715.40
GM69997Element, Primary (Outer)1Air filter Amazon eBay $108.80
GM69998Element, Secondary (Inner)1Air filter Amazon eBay $66.30
GM75569-SKit, heavy duty air cleaner1Air filter buy
X-281-31Hose, radiator, straight, 2 in. ID1Hose buy
X-507-7Hose, radiator, straight, 3 in. ID1Hose buy
X-6359-14Hose, rubber1Hose buy
X-6359-16Hose, rubber1Hose buy
X-6359-7Hose, rubber, straight, 0.25 in. ID1Hose buy
278788Valve, drain, 3/8 in. NPT2Service part / kit buy
299892Fan, pusher1Service part / kit buy
GM29834Fan, pusher1Service part / kit buy
GM31749Fan, pusher1Service part / kit buy
GM47607Fan, pusher1Service part / kit buy
GM47608Fan, pusher1Service part / kit buy
GM79193Fan, pusher1Service part / kit buy

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime25%56.715.0
Prime50%101.926.9
Prime75%150.639.8
Prime100%199.952.8
Standby25%60.916.1
Standby50%111.929.6
Standby75%165.543.7
Standby100%219.658.0

Available documents

Spec sheet — Kohler-800REOZDE-spec-sheet (Kohler)Reference (Kohler)Reference — G6-39 0918AZ (Kohler)Parts manual — tp6284 (Kohler)

This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.