18 - 45 kVA JCB Diesel by Kohler

Designed to deliver high performance in the most compact packages.
JCB’s engine range ensures tried and proven performance, economy and low noise to support you in any application. The G20QS to G45QS models are fitted with high quality componentry to compliment the engine, including Mecc Alte alternators and a standard-fit control panel from market leaders Deep Sea Electronics (DSE). Proven components give reliable performance, even in these smaller power generators.


50/60 Hz
JCB Diesel by Kohler
Open or Acoustic Canopy


JCB's Diesel by Kohler engine provides power to the G20Qs-G45QS range of generators - that means you can expect superior performance, low fuel consumption and increased efficiency.

Mecc Alte alternators are among the most efficient on the market, and all of our generators are fitted with them as standard.

The compact canopy minimises logistics costs for dealers and customers alike and reduces space requirements when installed on site.

Our largest compact model boasts a turbocharger and 4 valves per cylinder for high power performance.


The 20-45QS are the smallest models in the new QS range, delivering compact dimensions and a class leading width to enable multiple units to be transported together.

There are four lifting points on the G20QS to G45QS generators, ensuring superb manoeuvrability and maximum control.

Phosphate dipped and 9stg powder paint finish for excellent corrosion and UV resistance.

All new models feature multi-stage, fuel filtration ensuring the machines are protected against lower quality fuels.

The QS range is designed with all steel and no plastic components ensuring the quality and longevity of our product.


The compact QS range offers class leading serviceability with large access doors with positively retained sound proofing and enhanced service access. 

Mechanical door latches also allow for "slam shut" and are simple and easy to use.

The JCB Diesel by Kohler engine allows single-sided service access with an external radiator fill point to make to make servicing easy.

Internal, lockable fill point for improved security with easy to access neck.

All parts including the engine components will be available via JCB service.

Livelink image with G115QS

LiveLink for Power

JCB generators feature LiveLink for Power telematics as standard over 65kVA, and as an option on all other models. LiveLink provides useful data to monitor load phasing, fuel efficiency, and any potential faults. Find out how customers are benefiting from LiveLink on JCB generators.