Three ceramic pistons, brass linear pump head with built-in by-pass valve. By-pass thermal protection with safety valve. 2 cylinder water cooled diesel engine with electrical start. Integrated electric generator. Auxiliary belt driven alternator sturdy. Lombardini 15LD400 diesel engine (air cooled). Belt driven pump (1,450 RPM). Automatic engine RPM regulator. Tool Socket max 1.5 kW Integrated detergent suction with external suction probe. Front panel with engine function led and automatic power cut-off. Unique tank for diesel engine and burner. Battery included.