4200 PSI – 4.0 GPM Pressure Washer with CAT 67DX39G1I

Description

The 4200 PSI – 4.0 GPM Pressure Washer with CAT 67DX39G1I from Simpson gives pressure washing professionals strong, reliable power in a setup that stays lighter and easier to handle. It supports a wide range of pressure washing work and keeps the machine balanced, mobile, and easy to move around the job site.

The machine delivers 4,200 PSI at 4.0 GPM and runs on the reliable Honda GX390 engine, which provides steady power, smooth operation, and consistent performance during long workdays. The direct drive CAT Pump maintains steady flow and handles daily use with confidence, helping the unit perform reliably job after job.

The aluminum frame keeps the washer lighter than steel while staying rigid and durable. The 13″ tires roll easily across uneven ground, making transport and positioning simple. Every part of this washer supports efficient work without slowing you down.

This unit includes:

• 3/8″ X 50′ high-pressure hose with QC
• Spray lance
• Trigger gun
• Quick-connect nozzles (0°, 15°, 25°, 40°, and Soap)
• Engine oil (10W-30)
• Low-pressure soap injector

Key Features

• 4,200 PSI at 4.0 GPM. Delivers strong, consistent pressure and flow that handles siding, concrete, equipment, and general professional cleaning without fading during longer jobs.
• Honda GX390 engine. Provides dependable power, easy starts, and smooth operation that holds up under regular commercial use.

• CAT 67DX39G1I triplex pump: Uses a proven triplex design to deliver steady output and long-term durability for daily professional use. The pump includes a thermal relief valve to manage heat buildup and an integrated easy-start unloader that reduces strain during startup.

• Direct drive system: Transfers power efficiently from the engine to the pump, helping maintain consistent performance while keeping the setup simple and reliable.

• Lightweight aluminum frame. Keeps the machine easier to maneuver, transport, and load while maintaining strength and rigidity.

• 13″ pneumatic tires tires. Roll smoothly across uneven surfaces and job sites, helping the unit stay stable and easy to move throughout the day.

• Professional warranty coverage. Includes a 10-year frame warranty, 5-year pump warranty, and 3-year engine warranty.

If you’re looking for a dependable 4 GPM machine that balances power, weight, and durability, this 4200 PSI – 4.0 GPM Pressure Washer with CAT 67DX39G1I is a solid choice. If you want help deciding if this model fits your setup or workload, give us a call at 561-314-0761. We’re happy to help!