The Comet LWS4020S from the LWS (24 mm solid shaft) series is engineered for high-efficiency, durable performance in commercial and industrial pressure washer systems. With a rated output of 4.0 GPM at 2,000 PSI, this pump is ideal for applications that require strong pressure and steady flow—whether for fleet washing, surface cleaning, or equipment maintenance. Built with rugged materials and smart design, it balances power and reliability in a compact, service-friendly form.
Specifications
Maximum Flow: 4.0 GPM @ 2,000 PSI
Maximum Pressure: 2,000 PSI
Maximum Speed / RPM: 1,750 RPM
Shaft Type: 24 mm solid shaft, ideal for belt-drive or gearbox coupling
Inlet Port: ½‑14 FPT
Discharge Port: ⅜‑19 FPT
Crankcase / Material: Die-cast anodized aluminum construction
Plungers & Valves: Solid ceramic plungers, forged brass head/valve housing
Weight: ~13.4 lbs. (pump unit)
Oil Capacity: ~11 oz
Maximum Fluid Temperature: ~140–165 °F / (depending on installation)
Features
Forged brass valve body and head provide durability under pressure
Solid ceramic plungers and stainless check valves ensure long life and resistance to corrosion
Compact design ideal for tight installations or retrofit setups
Reversible crankcase (can adapt for left- or right-side mounting)
Proven performance with stable flow under load
Applications
The LWS4020S is an excellent choice for:
Truck, trailer, and fleet washing
Large surface cleaning (concrete, buildings, parking lots)
Mobile cleaning rigs and rental systems
Situations where a strong pressure is needed but flow can be more modest
The Comet LWS4020S from the LWS (24 mm solid shaft) series is engineered for high-efficiency, durable performance in commercial and industrial pressure washer systems. With a rated output of 4.0 GPM at 2,000 PSI, this pump is ideal for applications that require strong pressure and steady flow—whether for fleet washing, surface cleaning, or equipment maintenance. Built with rugged materials and smart design, it balances power and reliability in a compact, service-friendly form.
Specifications
Maximum Flow: 4.0 GPM @ 2,000 PSI
Maximum Pressure: 2,000 PSI
Maximum Speed / RPM: 1,750 RPM
Shaft Type: 24 mm solid shaft, ideal for belt-drive or gearbox coupling
Inlet Port: ½‑14 FPT
Discharge Port: ⅜‑19 FPT
Crankcase / Material: Die-cast anodized aluminum construction
Plungers & Valves: Solid ceramic plungers, forged brass head/valve housing
Weight: ~13.4 lbs. (pump unit)
Oil Capacity: ~11 oz
Maximum Fluid Temperature: ~140–165 °F / (depending on installation)
Features
Forged brass valve body and head provide durability under pressure
Solid ceramic plungers and stainless check valves ensure long life and resistance to corrosion
Compact design ideal for tight installations or retrofit setups
Reversible crankcase (can adapt for left- or right-side mounting)
Proven performance with stable flow under load
Applications
The LWS4020S is an excellent choice for:
Truck, trailer, and fleet washing
Large surface cleaning (concrete, buildings, parking lots)
Mobile cleaning rigs and rental systems
Situations where a strong pressure is needed but flow can be more modest
