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Kohler R66C3 Generator Set

The Kohler R66C3 generator set is specially designed for rental fleets, handling the most complex applications in both standby and prime modes. Explore the generator and contact us. A Best Tools representative will provide you with all relevant information and, if necessary, guide you to the perfect generator for your project.

*For price quotes and other details, please contact us.

Product Description

The Kohler R66C3 generator is a diesel unit manufactured in France, with emergency power of 66 kVA and continuous power of 60 kVA, operating at a frequency of 50 Hz and a speed of 1500 rpm. The supplied voltage is 400/230V.


  • Equipped with a 4.48 L JOHN DEERE diesel engine, providing a maximum power of 61 kW.
  • 4 cylinders
  • Fuel: Diesel
  • Cooling system: Radiator
  • Fuel consumption at 100% load: 14.9 l/h
  • Fuel consumption at 75% load: 11.9 l/h
  • Fuel consumption at 50% load: 8.7 l/h


  • Features a Kohler alternator with direct coupling, self-excited without brushes.
  • Insulation class: H
  • Protection degree: IP 23
  • 3 phases / 4 poles

Constructive Elements

Equipped with a 390 L fuel tank, electronic speed regulator, preheating system for the cooling liquid (for easy starting in cold seasons), 12V starting system, rectifier for battery charging when the generator is not running, alternator for charging the battery during engine operation, and vibration dampers located between the chassis and the engine-alternator assembly.

APM403 Digital Controller

  • User-friendly control panel providing detailed information about the generator’s operation.
  • Incorporates numerous measuring instruments, fault signaling devices, command buttons, and indicators for various warning messages and proper operation of the entire assembly.

Soundproof Canopy

  • Constructed with durable elements painted to the highest standards.
  • Equipped with doors allowing easy access to the generator components for quick and easy interventions.
  • Impressive soundproofing capacity, reducing the noise level to 77 dB at 1 meter and 65 dB at 7 meters.

Generator Dimensions

  • Length: 2545 mm
  • Width: 1150 mm
  • Height: 1824 mm
  • Total Weight: 1550 kg

Optional AAR VERSO 100 S – 100 A Source

  • Inverter Panel Dimensions: 385mm x 385mm x 193mm
  • Protection against ±15% frequency and voltage fluctuations.
  • Phase direction protection for both the network and the generator.
  • Protection against phase absence.
  • LEDs indicating phase alignment for the network and the generator, status of the electrical network or the generator, and position of the contactor for the network and the generator.

After-Sales Services

Best Tools provides comprehensive services for KOHLER generators, including consultancy, training, warranties, maintenance contracts, a complete range of related equipment, delivery, installation, and commissioning. Best Tools Company technicians are directly trained by KOHLER, regularly participating in training sessions organized in Brest, France. National coverage is ensured by more than 15 mobile service laboratories and personnel located in key points in Romania. The central service laboratory in Bucharest meets the expectations set by the premium manufacturers represented.


Kohler was established in 1873 in the United States. In 1920, Kohler produced the first modern generator. Its generator division has become increasingly efficient, especially after the acquisition of the French manufacturer SDMO Industries. Currently, Kohler is the third most important generator manufacturer globally, being a true trendsetter in the field.

Best Tools Company is the exclusive Kohler dealer in Romania and neighboring countries, distributing the complete range of products from the renowned manufacturer, from portable generators to high-power generators (1 – 4500 kVA).

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