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Home›Kohler›Kohler 125EFOZ

Kohler 125EFOZ Generator Set

The Kohler 125EFOZ is a 125 kW (156 kVA) Diesel standby generator set. It is available at 110/190 V, 120/208 V, 110/220 V, 220/380 V, 230/400 V and 240/416 V, 3-phase, 50 Hz and rated 475 A. It holds about 19 L (5.0 gal) of oil and 19 L (5.0 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses battery rated 925 CCA at 12 V. The set measures 2091×893×1003 mm (82.3×35.2×39.5 in) and weighs about 1494 kg (3294 lb).

125 kW
Standby
19.0 L
Oil capacity
5
Document types

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Specifications

FuelDiesel
Frequency50.0 Hz
Standby power125 kW
Prime power125 kW
EmissionsIMO Tier III Exempt
ControllerDecision-Maker, Decision-Maker 3500, KOHLER-built microprocessor controls
Oil capacity19.0 L
Voltage options110/190 V, 120/208 V, 110/220 V, 220/380 V, 230/400 V, 240/416 V
Phase3
Rated current475 A
Battery cranking925 CCA
Battery voltage12- or 24-volt V
Coolant capacity19 L
Max ambient50 °C
Dimensions (L×W×H)2091×893×1003 mm
Dry weight1494 kg

Maintenance & consumables

ItemSpecCapacityPart #Interval
Fuel filterPrimary223414 Amazon eBay $24.57
Fuel filterSecondary223953 Amazon eBay $49.90
Oil filter223673 Amazon eBay $6.28

Common questions

What is the power rating of the Kohler 125EFOZ?

The Kohler 125EFOZ is rated 125 kW standby.

What fuel does the Kohler 125EFOZ use?

The Kohler 125EFOZ runs on Diesel.

Parts

117model family
Part #DescriptionQtySystem
222771Fuel/water separator1Fuel filter Amazon eBay $29.14
223414Filter, fuel1Fuel filter Amazon eBay $24.57
223604Filter, oil1Oil filter Amazon eBay $35.77
223673Filter, oil1Oil filter Amazon eBay $6.28
223953Filter, fuel1Fuel filter Amazon eBay $49.90
226915Element, air cleaner1Air filter Amazon eBay $43.43
229125BELT, SEAWATER PUMP1Belt Amazon eBay $22.07
229678Filter, oil1Oil filter Amazon eBay $21.99
229715Element, fuel1Fuel filter Amazon eBay $11.99
229826IMPELLER REPAIR KIT1Impeller buy
249989BELT1Belt Amazon eBay $19.76
250813Element, fuel1Fuel filter Amazon eBay $15.00
250954Filter, oil1Oil filter Amazon eBay $31.57
252834Filter, oil1Oil filter Amazon eBay $27.95
252898Filter, fuel1Fuel filter Amazon eBay $244.78
253107Element, air cleaner1Air filter Amazon eBay $69.00
253108Element, air cleaner1Air filter Amazon eBay $20.45
254471Element, air cleaner1Air filter Amazon eBay $94.38
256503BELT1Belt Amazon eBay $12.00
258423Element, air cleaner1Air filter Amazon eBay $36.43
258646Element, air cleaner1Air filter Amazon eBay $35.69
267714Filter, oil1Oil filter Amazon eBay $14.93
267987FILTER, PRIMARY FUEL1Fuel filter Amazon eBay $14.95
272981Air cleaner, industrial1Air filter Amazon eBay $449.00
272982Air cleaner, industrial1Air filter Amazon eBay $68.99
274821Air cleaner, industrial1Air filter Amazon eBay $49.27
275501Filter, fuel1Fuel filter Amazon eBay $8.13
276148BELT1Belt Amazon eBay $65.69
277759Element, air cleaner1Air filter Amazon eBay $7.18
278612Element, air cleaner1Air filter Amazon eBay $29.64
278858Element, air cleaner1Air filter Amazon eBay $30.48
279218Filter, oil1Oil filter Amazon eBay $28.88
279260Filter, oil1Oil filter Amazon eBay $17.97
279261Filter, fuel1Fuel filter Amazon eBay $200.00
279262Filter, fuel1Fuel filter Amazon eBay $17.97
279449Filter, oil1Oil filter Amazon eBay $20.00
279736Element, air cleaner1Air filter Amazon eBay $42.99
322056-SIn-line fuel filter1Fuel filter Amazon eBay $24.95
322536Filter, fuel1Fuel filter Amazon eBay $29.26
324418Element, air cleaner1Air filter Amazon eBay $23.93
326098Element, air cleaner1Air filter Amazon eBay $200.00
326099Element, air cleaner1Air filter Amazon eBay $49.99
326817Filter, oil1Oil filter Amazon eBay $24.59
328215Filter, fuel1Fuel filter Amazon eBay $19.99
328216Filter, fuel1Fuel filter Amazon eBay $19.97
336661Filter, fuel1Fuel filter Amazon eBay $12.00
343219Air cleaner, industrial1Air filter Amazon eBay $78.87
343445Filter, oil1Oil filter Amazon eBay $33.15
354842Air cleaner, industrial1Air filter Amazon eBay $75.00
359771Filter, oil1Oil filter Amazon eBay $22.46
359978IMPELLER REPAIR KIT1Impeller buy
360031Filter, oil1Oil filter Amazon eBay $13.50
363205BELT1Belt Amazon eBay $3.75
363418Filter, fuel1Fuel filter Amazon eBay $9.10
365012Filter, oil1Oil filter Amazon eBay $69.95
52 050 02-SFILTER, OIL1Oil filter buy
ED0021752800-SFILTER, OIL1Oil filter Amazon eBay $22.90
ED0021752850-SFILTER, OIL1Oil filter Amazon eBay $36.35
ED0021752880-SFILTER, SECONDARY FUEL1Fuel filter Amazon eBay $28.71
ED0021753200-SFILTER, SECONDARY FUEL1Fuel filter Amazon eBay $49.97
GM13224Filter, oil1Oil filter Amazon eBay $60.00
GM13943Filter, oil bypass1Oil filter Amazon eBay
GM13947Filter, fuel1Fuel filter Amazon eBay $79.99
GM13949Filter, oil1Oil filter Amazon eBay
GM16114Filter, oil1Oil filter Amazon eBay
GM16532Filter, oil1Oil filter Amazon eBay
GM16703Filter, oil1Oil filter Amazon eBay $10.00
GM16944Element, air cleaner1Air filter Amazon eBay $49.68
GM18793IMPELLER REPAIR KIT1Impeller Amazon eBay $68.63
GM18808FILTER, SECONDARY FUEL1Fuel filter Amazon eBay
GM18821FILTER, PRIMARY FUEL1Fuel filter Amazon eBay $49.99
GM25504Filter, oil1Oil filter Amazon eBay
GM25506Filter, oil1Oil filter Amazon eBay $35.00
GM25508Filter, oil1Oil filter Amazon eBay $14.95
GM25537Filter, fuel1Fuel filter Amazon eBay FridayParts $32.00
GM25552Fuel/water separator1Fuel filter Amazon eBay $14.99
GM25554Filter, fuel1Fuel filter Amazon eBay $19.99
GM28351Filter, oil1Oil filter Amazon eBay $19.46
GM30594Filter, fuel, secondary1Fuel filter Amazon eBay $60.00
GM32359Filter, fuel1Fuel filter Amazon eBay $26.87
GM32809FILTER, OIL1Oil filter Amazon eBay $42.50
GM34570FILTER, SECONDARY FUEL1Fuel filter Amazon eBay $23.36
GM35825BELT1Belt Amazon eBay $133.60
GM35826SPARK PLUG4Spark plug Amazon eBay $13.00
GM46180SPARK PLUG2Spark plug Amazon eBay $15.14
GM47465FILTER, OIL1Oil filter Amazon eBay $23.52
GM48014BELT, SEAWATER PUMP1Belt buy
GM48727FILTER, PRIMARY FUEL1Fuel filter Amazon eBay $24.99
GM48728FILTER, SECONDARY FUEL1Fuel filter Amazon eBay $100.76
GM48729FILTER, PRIMARY FUEL1Fuel filter Amazon eBay $22.49
GM48730FILTER, SECONDARY FUEL1Fuel filter Amazon eBay $51.48
GM48731FILTER, OIL1Oil filter Amazon eBay $25.24
GM50263FILTER, PRIMARY FUEL (Includes primary and secondary filter elements)1Fuel filter Amazon eBay $99.99
GM50644IMPELLER REPAIR KIT1Impeller Amazon eBay $38.39
GM77091BELT, SEAWATER PUMP1Belt buy
GM90645BELT, SEAWATER PUMP1Belt buy
223316FUSE, 8-AMP5Service part / kit buy
239282BRUSH2Service part / kit buy
239298FUSE, 5-AMP5Service part / kit buy
243273FUSE, 3-AMP5Service part / kit buy
260085ZINC ANODE KIT1Service part / kit buy
262389FUSE, 25-AMP5Service part / kit buy
267928ZINC ANODE KIT1Service part / kit buy
283645FUSE, 15-AMP5Service part / kit buy
344835CONTAINER1Service part / kit buy
352142ZINC ANODE KIT1Service part / kit Amazon eBay $26.09
358337FUSE, 10-AMP5Service part / kit buy
ED0090802150-SZINC ANODE KIT1Service part / kit buy
ED0090802840-SZINC ANODE KIT1Service part / kit buy
GM15402BRUSH1Service part / kit Amazon eBay $231.88
GM39266FUSE, 20-AMP5Service part / kit buy
GM47427FUSE, 20-AMP5Service part / kit buy
GV15402CIRCUIT BREAKER, 10-AMP1Service part / kit buy
GV42337FUSE, 10-AMP5Service part / kit buy
GV42339FUSE, 25-AMP5Service part / kit buy
X-6348-6DECAL1Service part / kit buy
X-6348-9DECAL1Service 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%14.33.8
Prime50%24.76.5
Prime75%36.39.6
Prime100%46.112.2

Available documents

BrochureSpec sheetReferenceOwner's manualParts manual