FG Wilson PRO20-4 Stage V Diesel Generator – 20 kVA Rental Power Unit

FG Wilson PRO20-4 Stage V Diesel Generator – 20 kVA Rental Power Unit

Ensure reliable and efficient temporary power with the FG Wilson PRO20-4, a high-performance 20 kVA diesel generator engineered for demanding rental and site applications. Built to comply with EU Stage V emissions standards, this unit is ideal for use across the UK and Europe.

 Key Features:

• Prime Power Output: 20 kVA / 16 kW (50 Hz)

• Engine: Durable Perkins 404J-22G

• Alternator: High-quality Leroy Somer LL1114M

• Voltage Range: 220–415V, 3-phase

• Fuel Efficiency: Approx. 4 L/h at 75% load

• Tank Capacity: 56 litres for extended operation

• Compact Design: 1718 × 918 × 1300 mm, 735 kg

• Noise-Reducing Canopy: Galvanized, weatherproof & sound-attenuated

• Control System: Intuitive operator panel for easy monitoring and control

 Built for Tough Environments:

• Heavy-duty build quality ideal for construction, utilities, and events

• 10% overload capacity for 1 hour in every 12-hour cycle

• Designed for continuous use with no hourly limitations

 Warranty Coverage:

• Prime Power: 1-year unlimited hours

• Standby Use: 2-year/500-hour coverage

Technical Specifications

• Power Output:

  • Prime: 20 kVA / 16 kW

  • Standby: 20 kVA / 16 kW

• Engine:

  • Model: Perkins 404J-22G

  • Displacement: 2.2 litres

  • Bore x Stroke: 84 mm x 100 mm

  • Compression Ratio: 23:1

  • Governor Type: Mechanical

• Alternator:

  • Model: Leroy Somer LL1114M

  • Excitation: SHUNT

  • Protection: IP23

• Frequency: 50 Hz

• Voltage Range: 220–415 V

• Speed: 1500 RPM

• Fuel Consumption: Approximately 4 L/h at 75% load

• Fuel Tank Capacity: 56 litres

• Emissions Compliance: EU Stage V / Tier IV Final

• Weight: 735 kg

• Dimensions (L × W × H): 1718 × 918 × 1300 mm.

Standard Features

• Enclosure: Galvanized, sound-attenuated canopy designed to withstand harsh on-site conditions while minimizing noise.

• Control Panel: Deep Sea DSE6320 Auto Mains (Utility) Failure Control Module with back-lit LCD screen and LED indicators.

• Cooling System: Radiator with vertical air discharge, suitable for ambient temperatures up to 43°C.

• Fuel System: Integrated 56-litre double-wall fuel tank providing approximately 25.4 hours of runtime at 75% load.

• Mounting: Soft-mounted on a heavy-duty steel base frame with integral 110% spill containment.

• Exhaust System: Integrated spark arresting silencer with flexible connectors.

The FG Wilson PRO20-4 diesel generator has a gross weight of 735 kg when filled with lubricating oil and coolant. When fully fuelled, the weight increases to 745 kg.

Trust FG Wilson for dependable power generation solutions. The PRO20-4 delivers low emissions, low noise, and long-lasting performance — making it the perfect choice for rental fleets, contractors, and critical backup scenarios.

We are the largest stockist of FG Wilson Genuine Parts in the UK and are equipped with state-of-the-art parts ordering software, Ensuring you have access to the right parts, At the right time with full warranty. 

If parts are needed during Maintenance, Servicing or Repairs, Then Ensure only genuine parts are fitted. They are the only parts that are approved and warranted by FG Wilson, When buying all your parts from an authorised dealer like us at Mitchell Powersystems, You can guarantee you get Genuine Quality Reliable Parts Every time.

Genuine FG WILSON PRODUCTS

Mitchell Powersystems are an Authorized and Official Distributer of FG WILSON PARTS.