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Kohler K66 Generator Set

The Kohler K66 generator set is specially designed to meet the most demanding requirements, both in 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 K66 generator set is a diesel unit manufactured in France, capable of producing 66 kVA in emergency mode and 60 kVA in continuous mode, operating at a frequency of 50 Hz and a speed of 1500 rpm. The supplied voltage is 400 / 230 V.


The generator is equipped with a KOHLER KDI 3.36l engine, with a maximum power of 63 kW:

  • Number of cylinders: 4
  • Fuel: Diesel
  • Cooling system type: Radiator
  • Fuel consumption at 100% load: 14.6 l/h
  • Fuel consumption at 75% load: 11.3 l/h
  • Fuel consumption at 50% load: 8.8 l/h


The generator set is equipped with a Kohler alternator with direct coupling, self-excited without brushes, insulation class H, protection degree IP 23, with 3 phases / 4 poles.

Constructive Elements

The generator includes a 100-liter tank integrated under the chassis, 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 placed between the chassis and the motor-alternator assembly.

Digital Controller APM303

The control panel is user-friendly, even for unskilled personnel, designed to provide extensive details about the generator’s operation. The controller incorporates dozens of instruments for measuring generator performance, signaling devices for faults and more, command buttons, and indicators for various warning messages and proper operation of the entire assembly.

Soundproofing Enclosure

The soundproofing enclosure is built with resistant elements, painted to the highest standards. It is equipped with doors that allow easy access to the generator components for quick and easy interventions. The soundproofing capacity of the enclosure is impressive, reducing the noise level to 79 dB at 1 meter and 66 dB at 7 meters.

Generator Dimensions (soundproofed)

  • Length: 2100 mm
  • Width: 938 mm
  • Height: 1285 mm
  • Total Weight: 953 kg

Optional AAR VERSO 100 S – 100 A Source Inverter

  • Panel Dimensions: 385 mm x 385 mm x 193 mm
  • Protection for ±15% fluctuations in frequency and voltage
  • Protection for phase sequence in the network and the group
  • Protection for lack of phase
  • LED indicators for network and group phase sequence, electrical network or group status, and the position of the contactor for the network and the group.

After-Sales Services

In addition to Kohler generators, Best Tools offers comprehensive services, including consultancy, training, warranties, maintenance contracts, a complete range of related equipment, delivery, installation, and commissioning. Best Tools Company technicians are trained directly by Kohler, regularly participating in training sessions organized in Brest, France. National coverage is ensured by over 15 mobile service laboratories and personnel located in key points in Romania. The central service laboratory in Bucharest meets the expectations of the premium manufacturers we represent.


Kohler Company 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 acquiring the French manufacturer SDMO Industries. At present, Kohler is the third most important generator manufacturer globally, a true trendsetter in the field.

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

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