Used JCB G140QS 140 kVA Diesel Generator – Only 1 Hour

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This used JCB G140QS diesel generator is in exceptional condition, showing just 1 standby test hour from new. Designed for reliable standby and prime power, the G140QS combines the proven JCB Dieselmax engine with a Mecc Alte alternator and advanced DSE 4520 control panel. Was used for as standby generator at a wedding venue which never experienced power failure hence the 1 test hour.

Supplied with a full pre-delivery inspection and load bank test, this generator is effectively unused but available at a used generator price, making it one of the best-value 140 kVA diesel generators on the UK market.

Key Features of This JCB G140QS Generator

  • Used generator – only 1 test hour

  • Year of Manufacture: 2018

  • 140 kVA standby rating (400/415V, 50Hz)

  • Powered by the JCB 448 G-TCA-117 Dieselmax engine

  • Mecc Alte ECP34-M/4 alternator with Class H insulation

  • Deep Sea Electronics 4520 control panel

  • 270L bunded steel fuel tank – approx. 16.8 hours at 50% load

  • Acoustic weatherproof canopy – noise level just 68 dBA @ 7m

  • Fork pockets and LOLER-compliant central lift point

  • CE-compliant build including bunded fuel tank and earth leakage protection

  • Includes full PDI and load bank test

Technical Specification

  • Engine: JCB 448 G-TCA-117

  • Standby rating: 140 kVA, 400/415V, 50Hz

  • Alternator: Mecc Alte ECP34-M/4, Class H insulation

  • Protection: EG 43 Grey alternator winding protection

  • Excitation system: Maux

  • AVR: Digital Standard Regulator (DSR)

  • Fuel tank: 270L bunded steel (16.8 hours run time @ 50% load)

  • Noise level: 68 dBA at 7m

  • Electrical protection: 3-pole MCCB, adjustable Earth Leakage Relay

  • Emergency stop: Internal and external buttons

  • Filtration: Heavy-duty air filter, three-stage 5-micron fuel filtration

  • Monitoring sensors: Coolant and oil temperature senders, low oil pressure switch, fuel level sensor

  • Support systems: Engine coolant heater and battery charger

Benefits of This Used JCB G140QS

  • Virtually new – only 1 hour run time

  • Fully tested, inspected, and load bank certified

  • Long-run bunded fuel tank for extended operation

  • Low-noise, weatherproof canopy – ideal for urban or site use

  • Fully CE-compliant with all UK safety and environmental standards

Full Data Sheet
Yellow JCB G140Q generator outdoors on pavement, with a black base, control panel, and ventilation grille.
Yellow JCB generator with vents on the side, placed outdoors on a paved surface, with other equipment and storage units in the background.
Front view of a JCB G140QS generator enclosed in a yellow and black metal casing, with open doors revealing engine and control panels, positioned on a concrete surface outdoors.
Yellow industrial generator with black base, parked on cracked asphalt, surrounded by vehicles and equipment.
Close-up of a technical data plate for a power generator, showing manufacturer details, serial number, power ratings, dimensions, and manufacturing date.
A large yellow industrial generator with open panels revealing internal components, situated outdoors on a paved surface.
Yellow industrial generator with black vents and doors, branded JCB, located outdoors on a paved surface.
Close-up of a portable industrial generator's control panel and engine components, with various warning and operational labels.
Close-up of a generator engine inside a yellow metal enclosure, showing various mechanical and electrical components.
Close-up of the engine inside a yellow generator, showing various mechanical parts including a black cylindrical component, hoses, and metallic components.
A metal engine data plate attached to a vehicle. The plate displays engine information including engine type, serial number, displacement, prime power, and other specifications and standards.
Close-up of a yellow industrial generator with visible engine components, warning labels, and control panels, parked on a cracked asphalt surface with a white vehicle in the background.
Industrial electrical panel with safety and warning labels, a digital control panel, and a yellow on/off switch.
Close-up of a technical information label on a machine, displaying serial number, manufacturing date, electrical specifications, and certification marks, with water droplets on the surface.

Used Generators For Sale UK
At Used Generator Trader, we specialise in supplying high-quality used generators for sale in the UK, sourced from trusted brands and inspected by our experienced engineering team. Whether you need a reliable standby generator for business continuity, a prime power unit for industrial use, or a cost-effective backup solution for commercial or agricultural sites, our range of second-hand diesel generators offers exceptional value.

All of our used generators are carefully selected, serviced, and load tested to ensure dependable performance. We stock leading manufacturers including Cummins, Perkins, FG Wilson, CAT, Baudouin, Doosan, Volvo, and many more. With nationwide coverage and worldwide export options, Used Generator Trader is your trusted partner for used generators in the UK.

Explore our latest stock of used diesel generators for sale today and find the right power solution to match your requirements.