Loading... Please wait...
Mon-Fri, 8:00-4:30 EST - ORDER/HELP DESK

Shop By Category

Click for the BBB Business Review of this Electric Equipment & Supplies - Retail in Grand Rapids MI
Online Payments

Kohler 45REOZT4 Generator (40kW)

  • Image 1
  • Image 2
  • Image 3
Please Call for Discounted Pricing
3,900.00 LBS

Bookmark and Share

The Kohler 45REOZT4 mobile diesel generator offers up to 40 kW of single/three phase power at a quiet 67 dBA.


  • Single Voltage Reconnectable Model (1Ph 120/040V, 3Ph 120/208V, 3Ph 120/240V, or 3Ph 277/480V)
  • 3-Position Lockable Voltage Selector Switch Model (1Ph 120/040V, 3Ph 120/208V, and 3Ph 277/480V)
  • Single Voltage Stand-Alone Model (3Ph 347/600V)


Generator Features

  • Kohler’s wound field excitation system with its unique PowerBoost design delivers great voltage response and short-circuit capability.
  • Sustained short-circuit current of up to 300% of the rated current for up to 10 seconds.
  • Sustained short-circuit current enabling downstream circuit breakers to trip without collapsing the alternator field.
  • The brushless, rotating-field alternator has broad-range reconnectability when ordered without a voltage selector switch (except 600V model).
  • Self-ventilated and dripproof construction.
  • Windings are vacuum-impregnated with epoxy varnish for dependability and long life.
  • Superior voltage waveform from a two-thirds pitch stator and skewed rotor.
  • Unit-mounted radiator with 50C (122F) ambient air capability with prime rating.
  • NEMA MG1, IEEE, and ANSI standards compliance for temperature rise and motor starting.

Engine Features

  • Kohler diesel 2.5L 4-cycle turbocharged engine.
  • Uses cooled Exhaust Gas Regeneration (EGR) and diesel oxidation catalyst to meet Tier 4 Final without a Diesel Particulate Filter (DPF).
  • Lockable battery disconnect switch.
  • Battery, battery rack, and cables included.
  • Heavy-duty air cleaner with air restrictor indicator.
  • Engine oil and coolant added.
  • 125% environmental containment basin for oil and coolant.
  • Oil drain extension.

Decision-Maker 3500 Controller Features

  • Provides advanced control, system monitoring, and system diagnostics for optimum performance and compatibility.
  • Digital display with adjustable contrast and menu control provide easy local data access.
  • Remote communication thru a PC via network or serial configuration.
  • Controller supports Modbus protocol.
  • Integrated hybrid voltage regulator with +/-0.5% regulation.
  • Potted circuitry for protection from vibration and debris.
  • Built-in alternator thermal overload protection.
  • NFPA 110 Level 1 capability.
  • Security cover.

Customer Connection Panel Features

  • Emergency stop switch.
  • Remote start/stop connection.
  • 120V 15A Shore power connectors for battery charger(s), battery heater, and block heater.
  • 150A main line circuit breaker for reconnectable and selector switch models (field adjustable). 60A main line circuit breaker for 600V model (field adjustable).
  • Load Lug Connections: 1 load lug per phase, #6-350MCM, 400A rating.
  • Receptacle and cam-lock options (see below).

Enclosure Features

  • Durable steel, sound-attenuating housing with quiet operation of 67 dB(A) @ 7 m (23 ft.) with full load at the prime rating.
  • Stainless steel hinges and lockable latches on doors.
  • Single-point lifting eye and four-point tie down system.

Fuel Tank Features

  • Sub-base 77 gallon fuel tank for minimum of 24-hour runtime at full load (33 hours at 75%).
  • Includes the fuel level gauge, fuel fill with lockable cap, and an atmospheric vent.
  • 110% secondary containment tank.
  • Emergency relief vents in primary inner tank and secondary outer tank.

Trailer Features

  • Single-axle trailer with electric brake system and battery back-up breakaway system.
  • DOT and TC (Transport Canada) compliant per current specifications published by both agencies, at the time of trailer manufacture.
  • 2 5/16" ball hitch coupler (optional Lunette eye available).
  • Lockable utility tool box with bottle jack, lug wrench, and fire extinguisher. Common key to enclosure.
  • Running lights with 7-wire harness and connector.
  • Front tongue jack.
  • Rear stabilizer trailer jacks.
  • Weight bearing fenders up to 227 kg (500 lbs.).

45REOZT4 Spec Sheet

OPTIONS (Order with Generator)

  • Convenience Receptacles: Two 15A 120V GFCI duplex receptacles and Three 50A 240V twistlock receptacles (with individual circuit breakers)
  • Color-Coded Camlock Style Load Connectors
  • Battery Charger
  • Cold Weather Package (includes block heater and battery heater pad/wrap)
  • 15 Relay Dry Contact
  • Two-Way Fuel Valve (for connection of a customer-supplied external fuel tank)
  • Spark Arrestor
  • CSA Approval
  • Spare Tire
  • Lunette Eye (for pintle hitch tow vehicles)
  • Wheel Chock Blocks
Standby Power:
3Ph: 40kW/50kVA; 1Ph: 36kW/36kVA
Prime/Continuous Power:
3Ph: 36kW/45kVA; 1Ph: 34kW/34kVA
Amperage - 3 Phase (Prime):
125A @ 120/208V, 108A @ 120/240V, 54A @ 277/480V, 43A @ 347/600V
Amperage - 1 Phase (Prime):
142A @ 120/240V
Voltage Options - 3 Phase:
120/208, 120/240, or 277/480 (12-Lead Reconnectable), Optional 347/600 also available (6-Lead)
Voltage Option - 1 Phase:
Optional Voltage Selector Switch:
1Ph 120/240V, 3Ph 120/208, & 3Ph 277/480V
Voltage Regulation:
+/- 0.5%
Frequency Regulation:
+/- 0.5%
Power Factor:
3Ph: 0.8, 1Ph: 1.0
Kohler, 4-pole, Rotating field, Self-ventilated, Drip-proof, Brushless, Single bearing, Brushless, Class H
Receptacles (Single Phase):
Optional (See Options)
Sound Level:
67 dBA
Kohler KDI 2504 TCR, 4-cylinder, 4-cycle, Turbocharged, 2.5L, 88 x 102 Bore x Stroke, 63 hp, 1800 rpm, Electronic Governor
Engine Starting System:
Fuel / Fuel Tank:
Diesel / 77 gallons
33 hours @ 75% load
EPA Tier 4 Final
Dimensions LxWxH (inches):
157.2 x 73.5 x 86.9 (w/ Trailer)
3900 lb. (w/o fuel)
Generator Warranty:
3 years / 3000 hours
Trailer Warranty:
1 year

Write your own product review

Product Reviews

This product hasn't received any reviews yet. Be the first to review this product!

Recently Viewed