EZ4030G34 Triplex Pressure Washer Pump – 3.0 GPM @ 4000 PSI, 3400 RPM, 1″ Hollow Shaft
Part Number: EZ4030G34
Category: Pressure Washer Pumps
Type: Direct-Drive Triplex Pump – EZ4030G34, 3.0 GPM @ 4000 PSI (3400 RPM, 1″ Hollow Shaft)
The EZ4030G34 Triplex Pressure Washer Pump is a high-pressure, commercial-grade direct-drive pump engineered for gas-powered pressure washers that require maximum cleaning force in a compact form. Delivering 3.0 GPM at up to 4000 PSI and operating at 3400 RPM, this pump is ideal for heavy residential and light commercial applications where cutting power matters most.
Built with rugged triplex plunger construction and a 1″ hollow shaft, the EZ4030G34 provides smoother operation, reduced vibration, and extended service life compared to axial cam pumps. Its direct-drive design allows for easy OEM-style installation on compatible engines, making it an excellent replacement or performance upgrade for high-pressure systems.
Product Specifications
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Pump Model: EZ4030G34
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Pump Type: Triplex Plunger, Direct Drive
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Flow Rate: 3.0 GPM
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Max Pressure: 4000 PSI
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Rated Speed: 3400 RPM
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Shaft Size: 1″ Hollow
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Bore Diameter: 13 mm
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Stroke: 9.5 mm
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Weight: 20 lb
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Condition: New
Features & Benefits
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High-pressure output up to 4000 PSI for demanding cleaning tasks
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Triplex plunger design for smooth, low-pulsation performance
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1″ hollow shaft for broad gas engine compatibility
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Compact direct-drive configuration for quick, drop-in installation
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Longer service life than axial-style pumps
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Ideal for heavy residential and light commercial use
Applications
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Gas-powered direct-drive pressure washers
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High-pressure residential and contractor-grade equipment
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OEM replacement for EZ-series pumps
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Equipment upgrades and refurbishments
Important Notes
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Verify shaft size (1″ hollow), RPM (3400), and engine compatibility before ordering
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Designed specifically for direct-drive configurations
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Final operating PSI and GPM depend on engine horsepower and system setup
