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General Pump EZ4040G34 – 4.0 GPM @ 4,000 PSI Triplex Plunger Pump
The General Pump EZ4040G34 is a high-performance triplex plunger pump from the EZ Series 44 line, designed for engine-driven pressure washer systems that require maximum flow with consistent high pressure. Delivering 4.0 GPM at 4,000 PSI, this pump is ideal for commercial and industrial cleaning applications where both efficiency and power are essential. Its compact, lightweight design makes it suitable for gasoline engine-driven setups with a 1-inch hollow shaft.
Specifications
Maximum Flow: 4.0 GPM @ 4,000 PSI
Maximum Pressure: 4,000 PSI
Maximum Pump Speed / RPM: 3,400 RPM
Horsepower Required: Up to 13 HP engine
Bore / Stroke: 0.512 in / 0.433 in (13 mm / 11 mm)
Shaft Type: 1-inch hollow shaft, flanged for SAE J609 engine mounts
Crankcase / Oil Capacity: 14 oz anodized aluminum, oil-bath lubrication
Inlet / Outlet Ports: 1/2-14 BSPP-F / 3/8-19 BSPP-F
Weight: ~20 lbs
Maximum Fluid Temperature: 165 °F
Features
Durable forged brass manifold for high-pressure performance
Stainless steel valves for long-lasting, reliable operation
Anodized aluminum crankcase with oil-bath lubrication for consistent performance
Compact, lightweight design for easy integration into engine-driven systems
Professional-grade performance with high flow for faster cleaning
Ideal for commercial and industrial applications where efficiency matters
Applications
The EZ4040G34 is perfect for:
Fleet and heavy equipment washing
Commercial surface cleaning such as concrete, walls, and decks
Mobile or rental pressure washer units
Engine-driven systems requiring a 1-inch hollow shaft with maximum flow
Note: The pump’s appearance may vary slightly depending on manufacturing batch, but all EZ4040G34 units maintain the same high-performance specifications and are fully compatible with systems designed for the EZ Series.
The General Pump EZ4040G34 is a high-performance triplex plunger pump from the EZ Series 44 line, designed for engine-driven pressure washer systems that require maximum flow with consistent high pressure. Delivering 4.0 GPM at 4,000 PSI, this pump is ideal for commercial and industrial cleaning applications where both efficiency and power are essential. Its compact, lightweight design makes it suitable for gasoline engine-driven setups with a 1-inch hollow shaft.
Specifications
Maximum Flow: 4.0 GPM @ 4,000 PSI
Maximum Pressure: 4,000 PSI
Maximum Pump Speed / RPM: 3,400 RPM
Horsepower Required: Up to 13 HP engine
Bore / Stroke: 0.512 in / 0.433 in (13 mm / 11 mm)
Shaft Type: 1-inch hollow shaft, flanged for SAE J609 engine mounts
Crankcase / Oil Capacity: 14 oz anodized aluminum, oil-bath lubrication
Inlet / Outlet Ports: 1/2-14 BSPP-F / 3/8-19 BSPP-F
Weight: ~20 lbs
Maximum Fluid Temperature: 165 °F
Features
Durable forged brass manifold for high-pressure performance
Stainless steel valves for long-lasting, reliable operation
Anodized aluminum crankcase with oil-bath lubrication for consistent performance
Compact, lightweight design for easy integration into engine-driven systems
Professional-grade performance with high flow for faster cleaning
Ideal for commercial and industrial applications where efficiency matters
Applications
The EZ4040G34 is perfect for:
Fleet and heavy equipment washing
Commercial surface cleaning such as concrete, walls, and decks
Mobile or rental pressure washer units
Engine-driven systems requiring a 1-inch hollow shaft with maximum flow
Note: The pump’s appearance may vary slightly depending on manufacturing batch, but all EZ4040G34 units maintain the same high-performance specifications and are fully compatible with systems designed for the EZ Series.