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Kohler 35 REOZT4 Generator Set

The Kohler 35 REOZT4 is a 30 kW (37.5 kVA) Diesel standby generator set powered by a Kohler 1.9 L engine. It is available at 120/208 V, 120/240 V, 277/480 V and 347/600 V, Single/Three-phase and 60 Hz. It holds about 8.7 L (2.3 gal) of oil and 17.2 L (4.5 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 1 battery rated 925 CCA at 12 V. The set measures 2184×1016×1622 mm (86.0×40.0×63.9 in), weighs about 1397 kg (3080 lb) and produces 67 dBA at 7 m. An integrated tank holds 293 L (77.4 gal), roughly 24 hours of runtime.

30 kW
Standby
1.9 L
Displacement
8.7 L
Oil capacity
7
Document types

How to read your Kohler serial & model number →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power30 kW
Standby kVA37
Prime power28 kW
EmissionsTier 4 Final
ControllerDecision-Maker 3500
Oil capacity8.7 L
AlternatorKohler 4D5.6
Voltage options115 V, 200 V
PhaseSingle/Three
Battery cranking925 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity17.2 L
Max ambient50 °C
Dimensions (L×W×H)2184×1016×1622 mm
Dry weight1397 kg
Sound level67.0 dBA @ 7 m
Fuel tank293.0 L
Tank runtime24 hr

Engine

Kohler 1.9 L
Displacement1.9 L

Maintenance & consumables

for the Kohler 1.9 L
ItemSpecCapacityPart #Interval
Air filterReplace cartridges B and G when dirty, clean the inside components A and D with a damp cloth.1000 hr find
Fuel filterstandby250 hr find
Oil filterstandby1000 hr find
Beltstandby1000 hr find
Coolantstandby10 hr
Oilstandby50 hr

Common questions

What is the power rating of the Kohler 35 REOZT4?

The Kohler 35 REOZT4 is rated 30 kW standby (37.5 kVA).

What engine does the Kohler 35 REOZT4 use?

The Kohler 35 REOZT4 is powered by the Kohler 1.9 L engine.

What fuel does the Kohler 35 REOZT4 use?

The Kohler 35 REOZT4 runs on Diesel.

What alternator does the Kohler 35 REOZT4 use?

The Kohler 35 REOZT4 uses a Kohler 4D5.6 alternator.

Parts

24
Part #DescriptionQtySystem
100-025-000Oil Filter Cartridge1Oil filter PartsGeek hdturbo $3199.00
100-030-000Air Filter Cartridge1Air filter PartsGeek
100-045-000Fuel Filter Cartridge1Fuel filter PartsGeek hdturbo $2099.00
100-060-000Oil Dipstick1Oil filter PartsGeek hdturbo $2099.00
100-075-000Oil Drain Plug1Oil filter PartsGeek hdturbo $3299.00
100-090-000Water Presence Sensor1Sensor PartsGeek
273377Gauge, restriction1Sensor PartsGeek
401-2567Cartridge dry-type air filter1Air filter PartsGeek
401-2568Intake manifold hose (air filter - intake manifold)1Hose PartsGeek
401-2569Coolant hoses1Hose PartsGeek
401-2570Fuel line hose1Hose PartsGeek
401-2571Alternator belt (standard alternator)1Belt PartsGeek
401-2572Poly-V alternator belt (heavy environmental condition)1Belt PartsGeek
401-2573Poly-V alternator belt (standard condition)1Belt PartsGeek
401-2574Coolant (OAT)1Fluid PartsGeek
401-2575Coolant (HOAT)1Fluid PartsGeek
A-226955Air cleaner assembly1Air filter Amazon eBay $2.28 PartsGeek
ED0053029490Battery not supplied by KohlerBattery PartsGeek
ED0082051340-SCOV.HEAD GASK.-OR SET 1903 TCR1Gasket PartsGeek
GM16944Element, Air Cleaner1Air filter Amazon eBay $49.68 PartsGeek
GM22310Hose, Reducer1Hose PartsGeek
GM66601Element, Inner1Air filter Amazon eBay $30.99 PartsGeek
GM88850Hose, Air Intake (Item 5)1Hose PartsGeek
401-2576ATS (Engine)1Service part / kit PartsGeek

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
Prime0.70.2
Prime25%2.90.8
Prime50%18.54.9
Prime75%23.56.2
Prime100%9.82.6
Standby0.80.2
Standby25%3.10.8
Standby50%5.41.4
Standby75%7.82.1
Standby100%10.52.8

Available documents

Brochure — DieselMobileGenerator (Kohler)Brochure — GSA Product List (Kohler)Brochure — Mobile Rental Generators (Kohler)Spec sheet (Kohler)Spec sheet — g5412 (Kohler)Installation manual — tt1672 (Kohler)Reference — FinalGSAPriceListEffective 3-20-2023 (Kohler)Reference — GSAPriceList (Kohler)Reference — adv9173 (Kohler)Owner's manual — tp6895 (Kohler)Parts manual — tp6894 (Kohler)Service manual — TP-6913 Rev 1018d (Kohler)

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