Senator Silent 275-20 : Diesel Cold Water Pressure Washer
4000 PSI (275 BAR) | 20 L/PM (5.3 GPM)
Category : Diesel pressure washer
The Senator Silent 275-20 is an industrial-grade, ultra-silent diesel pressure washer built for continuous 24/7 use. It delivers 4000 PSI (275 bar) at 20 L/min, powered by a liquid-cooled Kohler KDI1903 42HP diesel engine. Its sound-proof cabinet keeps noise to around 70dB, making it suitable for after-hours cleaning in built-up areas, mine sites, shipyards, government and council operations, and other heavy-duty industrial settings.
The Senator Silent 275-20 is an industrial-grade, ultra-silent diesel pressure washer built for continuous 24/7 use. It delivers 4000 PSI (275 bar) at 20 L/min, powered by a liquid-cooled Kohler KDI1903 42HP diesel engine. Its sound-proof cabinet keeps noise to around 70dB, making it suitable for after-hours cleaning in built-up areas, mine sites, shipyards, government and council operations, and other heavy-duty industrial settings.
Key Features
JW® UDOR® Premium Italian plunger pump, running at 1500 RPM directly coupled to the engine for longer life with no reduction losses
Liquid-cooled Kohler™ KDI1903 42HP diesel engine that optimises performance across all speeds and loads
InteliUMS™ LCD management system with live data readouts, warnings and auto shutdown to protect critical components
Sound-proof cabinet for ultra-low noise emissions (approx. 70dB), enabling after-hours use
Enclosed steel cabinet protecting all critical components from weather and operator error
Battery isolator and emergency stop, plus a lockable diesel fuel fill point for added safety
Class A performance — no Class B RTO certification required to operate
Included Accessories
Gun: J5500K LTF (Low Trigger Force) gun with swivel and lance coupling system
Lance: JW straight stainless steel lance with snap coupling and stainless steel nozzle
Hose: 10m non-marking double wire braid high pressure hose with M22 couplings