The General Pump EZ4035G34 from the EZ Series 44 line is engineered for high-pressure, compact engine-driven systems. With a rated flow of 3.5 GPM at 4,000 PSI, this pump delivers serious cleaning power in a lightweight (≈ 20–21 lb.) form. Built for rugged commercial use, it’s ideal for systems mounted to gasoline engines, especially applications requiring a 1-inch hollow shaft and SAE J609 engine flanges.
Specifications
Maximum Flow: 3.5 GPM @ 4,000 PSI
Maximum Pressure: 4,000 PSI
Maximum Pump Speed / RPM: 3,400 RPM
Bore / Stroke: 0.512 in. / 13 mm bore, 0.433 in. / 11 mm stroke
Shaft Type: 1.0-inch hollow shaft, flanged for direct coupling to gasoline engine up to ~13 HP (SAE J609 flange)
Crankcase Oil Capacity: 14 oz. (anodized die-cast aluminum oil-bath crankcase)
Inlet Port Thread: 1/2-14 BSPP-F
Discharge Port Thread: 3/8-19 BSPP-F
Weight: Approx. 20 lbs. shipping weight
Maximum Fluid Temperature: 165 °F
Features
Forged brass manifold with a lifetime warranty, designed for high hydrostatic rating.
Unitized stainless steel inlet/outlet valves for reliable fluid flow and long life.
Anodized aluminum crankcase with oil bath lubrication ensures durability and consistent operation under pressure.
Compact and lightweight build enables easier integration into engine-driven cleaning systems.
Suited for high-pressure applications in moderate-flow scenarios where a 1″ hollow shaft is required for direct gasoline engine mounting.
Applications
Ideal for engine-driven pressure washer systems used in:
Heavy vehicle and equipment washing
Concrete and surface cleaning where high pressure is required but flow is modest
Rental fleet packages or mobile cleaning units where compact size and reliability matter
Integration into new builds or retrofit systems needing a 1″ hollow shaft, flanged pump for gasoline engines
The General Pump EZ4035G34 from the EZ Series 44 line is engineered for high-pressure, compact engine-driven systems. With a rated flow of 3.5 GPM at 4,000 PSI, this pump delivers serious cleaning power in a lightweight (≈ 20–21 lb.) form. Built for rugged commercial use, it’s ideal for systems mounted to gasoline engines, especially applications requiring a 1-inch hollow shaft and SAE J609 engine flanges.
Specifications
Maximum Flow: 3.5 GPM @ 4,000 PSI
Maximum Pressure: 4,000 PSI
Maximum Pump Speed / RPM: 3,400 RPM
Bore / Stroke: 0.512 in. / 13 mm bore, 0.433 in. / 11 mm stroke
Shaft Type: 1.0-inch hollow shaft, flanged for direct coupling to gasoline engine up to ~13 HP (SAE J609 flange)
Crankcase Oil Capacity: 14 oz. (anodized die-cast aluminum oil-bath crankcase)
Inlet Port Thread: 1/2-14 BSPP-F
Discharge Port Thread: 3/8-19 BSPP-F
Weight: Approx. 20 lbs. shipping weight
Maximum Fluid Temperature: 165 °F
Features
Forged brass manifold with a lifetime warranty, designed for high hydrostatic rating.
Unitized stainless steel inlet/outlet valves for reliable fluid flow and long life.
Anodized aluminum crankcase with oil bath lubrication ensures durability and consistent operation under pressure.
Compact and lightweight build enables easier integration into engine-driven cleaning systems.
Suited for high-pressure applications in moderate-flow scenarios where a 1″ hollow shaft is required for direct gasoline engine mounting.
Applications
Ideal for engine-driven pressure washer systems used in:
Heavy vehicle and equipment washing
Concrete and surface cleaning where high pressure is required but flow is modest
Rental fleet packages or mobile cleaning units where compact size and reliability matter
Integration into new builds or retrofit systems needing a 1″ hollow shaft, flanged pump for gasoline engines
