Overview
- The RKA4G30N-EC is a commercial-duty, electric-ready pressure washer pump engineered for high-duty-cycle cleaning systems that require dependable power, clean integration, and low maintenance.
- Delivers 4.0 GPM at 3,000 PSI while running at a smooth 1750 RPM for reduced heat, vibration, and wear.
- Designed for electric motor setups with a 24mm solid keyed shaft.
- Package includes a 7″ pulley and pre-mounted electric clutch for simplified belt routing and positive engagement/disengagement.
- Built with a forged brass manifold, ceramic plungers, and oversized bearings for long-term durability.
- Ships factory-tested and pre-oiled for fast commissioning.
Key Specifications of RKA4G30N-EC
- Flow Rate: 4.0 GPM
- Pressure Rating: 3,000 PSI
- Operating Speed: 1,750 RPM (low-speed, cooler operation)
- Shaft: 24mm solid keyed shaft (optimized for electric motors)
- Drive Components: 7″ pulley and electric clutch included
- Manifold: Precision forged brass
- Plungers: Ceramic for reduced friction and wear resistance
- Bearings: Oversized for smooth, long-life operation
- Pump Type: Commercial triplex plunger pump
What’s Included with RKA4G30N-EC
- Electric clutch (pre-mounted)
- 7″ pulley for easy belt alignment
- Pre-installed break-in oil
- Vented dipstick for proper crankcase ventilation
- Oil sight glass for quick level checks
- Owner’s manual and schematic
- Performance test documentation
- 5-year commercial warranty
How the Pump Works
- Uses a triplex plunger system with three ceramic plungers for stable, low-pulsation output.
- Stainless steel valve sets maintain consistent pressure and clean valve cycling.
- Forged brass manifold holds valve alignment rigidly under load.
- 1750 RPM low-speed operation reduces heat, friction, and bearing load.
- Electric clutch allows instant engagement/disengagement for setup, priming, or standby.
- 7″ pulley provides a reliable belt path for electric motor integration.
Benefits of RKA4G30N-EC
- Electric-ready setup with included shaft, pulley, and clutch.
- Reliable 4 GPM at 3,000 PSI for bay cleaning, equipment washdowns, and commercial tasks.
- Low-speed operation extends component life and reduces vibration.
- Forged brass manifold and ceramic plungers ensure wet-end durability.
- Factory-tested with pre-installed oil for quick installation.
- Clutch provides operational control and safety during non-spraying situations.
- Backed by a 5-year commercial warranty.
Typical Use Cases
- Equipment wash bays and maintenance shops
- HVAC and facility service cleaning (coils, condensers, washdowns)
- Vehicle rental locations and parking facilities
- USDA and food-grade environments needing clean electric drive systems
- Municipal and property management maintenance
- Mobile contractor trailers (generator-driven) needing clutch safety
Why Choose This Pump
- Purpose-built for electric motor systems requiring 4 GPM at 3,000 PSI.
- Included pulley and clutch eliminate aftermarket sourcing.
- Low-speed 1750 RPM design increases reliability and reduces heat.
- Ceramic plungers and forged brass manifold ensure long-term durability.
- Ships pre-tested with documentation and pre-installed oil.
- Reliable, commercial-duty performance backed by a 5-year warranty.
Order the RKA4G30N-EC Today
- Get 4.0 GPM at 3,000 PSI with an electric-ready package, integrated clutch, and 7″ pulley.
- Built for long life, easy service, and commercial reliability.





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