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Kohler 100REOZJF Generator Set

The Kohler 100REOZJF is a 100 kW (125 kVA) Diesel standby generator set powered by a John Deere 4045HF285I engine. It is available at 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V and 347/600 V, 3-phase, 60 Hz and rated 347 A. It holds about 15.6 L (4.1 gal) of oil and 20.1 L (5.3 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 1 group-1 battery rated 640 CCA at 12 V. The set measures 2334×864×1210 mm (91.9×34.0×47.6 in). An integrated tank holds 215 L (56.8 gal), roughly 24 hours of runtime.

100 kW
Standby
4.5 L
Displacement
15.6 L
Oil capacity
3
Document types

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Typical fuel consumption for 100–105 kW Diesel generators →

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Service parts for the 100REOZJF

Grouped by system, with how many of each the parts manual calls for.

Fuel system

2 required
223414Fuel filter (primary)$13.45eBay
223953Fuel filter (secondary)$59.00Amazon

Oil system

1 required

Belts

1 required
GM66704-1Beltsee priceAmazon

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power100 kW
Standby kVA125
Prime power90 kW
EmissionsTier 3 EPA-Certified
ControllerAPM402, APM603, Decision-Maker 3000, Decision-Maker 550, Decision-Maker 6000
Oil capacity15.6 L
Alternator4R9X, 4R12X, 4T12X (4-pole, Class H insulation)
Voltage options120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V, 347/600 V
Phase3
Rated current347 A
Power factor0.8
Circuit breaker400 A
Battery group1/12
Battery cranking640 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity20.1 L
Engine jacket water8.5 L
Max ambient50 °C
Dimensions (L×W×H)2334×864×1210 mm
Fuel tank215.0 L
Tank runtime24 hr

Engine

John Deere 4045HF285I
Oil capacity14.7 L
Coolant capacity8.5 L
Displacement4.5 L
Aspiration4-Cycle, Turbocharged, Charge Air-Cooled
Rated speed1800 rpm

Maintenance & consumables

for the John Deere 4045HF285I
ItemSpecCapacityPart #Interval
Air filterDry
Fuel filterPrimary223414 Amazon eBay $13.45
Fuel filterSecondary223953 Amazon $59.00 eBay $80.00
Oil filterCartridge×1223673 Amazon $53.57 eBay $26.99 KuduParts $14.00
BeltFan Belt (12V)GM66704-1 Amazon eBay
OilFull Pressure lubricating system15.6 L

Compatible filters for the John Deere 4045HF285I — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: John Deere AL204809 John Deere AT390262 John Deere AT390261 John Deere AL119839 John Deere AL150285

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

What is the power rating of the Kohler 100REOZJF?

The Kohler 100REOZJF is rated 100 kW standby (125.0 kVA).

What engine does the Kohler 100REOZJF use?

The Kohler 100REOZJF is powered by the John Deere 4045HF285I engine.

What fuel does the Kohler 100REOZJF use?

The Kohler 100REOZJF runs on Diesel.

What is the oil capacity of the Kohler 100REOZJF?

The John Deere 4045HF285I engine in the Kohler 100REOZJF has an oil capacity of 14.7 liters.

What is the cooling system capacity of the Kohler 100REOZJF?

The Kohler 100REOZJF cooling system holds 20.1 liters (5.3 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the continuous rating of the Kohler 100REOZJF?

The Kohler 100REOZJF is rated 90 kW prime (113 kVA), against 100 kW standby.

What size fuel tank does the Kohler 100REOZJF have?

The Kohler 100REOZJF has a 215 liter (57 US gallon) fuel tank, giving about 24 hours of runtime.

What voltages is the Kohler 100REOZJF available in?

The Kohler 100REOZJF is offered in 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V, 3-phase.

How many cold cranking amps does the Kohler 100REOZJF require?

The Kohler 100REOZJF uses 1 battery, 12 V each, 640 CCA, group 1/12, per the manufacturer specification sheet.

What alternator comes on the Kohler 100REOZJF?

The Kohler 100REOZJF uses a 4R9X, 4R12X, 4T12X alternator. It has 4 poles. Insulation class H.

What oil filter does the Kohler 100REOZJF use?

The Kohler 100REOZJF uses oil filter part number 223673.

Which fuel filter part number does the Kohler 100REOZJF take?

The Kohler 100REOZJF uses fuel filter part numbers 223414, 223953.

Which air filter part number does the Kohler 100REOZJF take?

The Kohler 100REOZJF uses air filter part numbers JOHN DEERE AL204809, JOHN DEERE AT390262.

Parts

6
Part #DescriptionQtySystem
GM32809Oil filter1Oil filter Amazon Amazon Amazon Amazon $57.96 eBay $26.25
GM50006Fuel Filter1Fuel filter Amazon $23.99 eBay $26.99
GM50074Fuel Filter (primary)1Fuel filter Amazon $76.45 eBay $70.33
GM66704-1Fan Belt (12V)1Belt Amazon eBay
GM66704-2Fan Belt (24V)1Belt Amazon eBay
GM77161Oil Filter1Oil filter 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.

Fuel consumption

RatingLoadL/hgal/h
Prime25%7.62.0
Prime50%14.43.8
Prime75%22.76.0
Prime100%27.67.3
Standby25%9.52.5
Standby50%17.84.7
Standby75%25.06.6
Standby100%31.08.2

Available documents

Spec sheet (Kohler)Spec sheet — Kohler-100REOZJF (Kohler)Spec sheet — WPC-PO-6463-100kw-SA-Submittal (Kohler)Spec sheet — g5357 (Kohler)Reference (Kohler)Reference — 80-125REOZJ Snow Enclosures G6145 (Kohler)Reference — G6-39 0918AZ (Kohler)Reference — Jay Sewer Case Study (Kohler)Service manual — tp6798 (Kohler)Service manual — tp7138 (Kohler)Service manual — tp7149 (Kohler)Service manual — tt1649 (Kohler)

This page was generated from the 12 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Fuel filter (primary) 223414$13.45
Fuel filter (secondary) 223953$59.00
Oil filter 223673$26.99
3 priced items$99.44
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