EZ3040G Triplex Pressure Washer Pump – 4.0 GPM @ 3000 PSI, 3400 RPM, 1″ Hollow Shaft

Part Number: EZ3040G
Category: Pressure Washer Pumps
Type: Direct-Drive Triplex Pump – EZ3040G, 4.0 GPM @ 3000 PSI (3400 RPM, 1″ Hollow Shaft)

The EZ3040G Triplex Pressure Washer Pump is a commercial-grade, direct-drive replacement pump designed for gas-powered pressure washers that require dependable high-flow performance in a compact footprint. Rated for 4.0 GPM at 3000 PSI and operating at 3400 RPM, this pump delivers strong rinsing power and consistent output for residential and light commercial cleaning applications. Built with durable triplex plunger construction and a 1″ hollow shaft, the EZ3040G provides smoother operation, reduced vibration, and longer service life compared to axial cam pumps, making it an ideal OEM-style upgrade or replacement.

Product Specifications

• Pump Model: EZ3040G

• Pump Type: Triplex Plunger, Direct Drive

• Flow Rate: 4.0 GPM

• Max Pressure: 3000 PSI

• Rated Speed: 3400 RPM

• Shaft Size: 1″ Hollow

• Bore Diameter: 15 mm

• Stroke: 9.5 mm

• Weight: 19.1 lb

• Condition: New

Features & Benefits

• High-flow 4.0 GPM output for faster cleaning and rinsing

• Triplex plunger design for smoother operation and reduced pulsation

• 1″ hollow shaft for wide engine compatibility

• Compact direct-drive layout for quick, drop-in replacement

• Longer service life than axial-style pumps

• Ideal for residential and light commercial use

Applications

• Gas-powered direct-drive pressure washers

• Residential and light commercial cleaning systems

• OEM replacement for EZ-series pumps

• Equipment repair and refurbishment

Important Notes

• Verify shaft size (1″ hollow), RPM (3400), and engine compatibility before ordering

• Designed for direct-drive configurations only

• Final operating PSI and GPM depend on engine output and system setup