4000 PSI Pressure Washer Pump Direct Drive, 4 GPM High Pressure Replacement Power Washer Water Pump Gas Powered Washer with 1" Hollow Shaft Brass Head for Horizontal Shaft Gas Engine Honda GX390

DescriptionThis model offers strong performance, making it well-suited for both everyday and professional cleaning tasks. From floors and walls to cars, sidewalks, or construction sites, it helps streamline cleaning across a variety of surfaces.Key FeaturesMade to Last: High-quality brass and black-oxidized aluminum shell, finely crafted crankshaft and zinc alloy connecting rod make the product strong, stable, rust-proof, corrosion-resistant, and can be used for a long time.DetailsPressure Gauge: It can display the pressure situation in real time for easy observation and adjustment.Brass Pump Head: The one-piece brass pump head ensures stable and powerful water pressure.Unloading Valve: The pressure can be easily adjusted by twisting the unloading valve to avoid high-pressure damage to the machine.Oil Level Lens: It makes it easy to check the oil level without the need for a dipstick.Rounded Corners: The corners and smooth edges are designed to provide a comfortable and safer touch. ApplicationThis product is suitable for most 9-15 hp engines and can be used to clean walls, fences, sidewalks, vehicles, pipes, boats, livestock, and more. It fits most horizontal 1-inch shaft gas pressure washers (For 1-inch shaft horizontal engines only). It fits for Honda GX390 power.SpecificationModel: SJF-1807QColor: BlackStyle: ModernMaterial: Brass, AluminumProcess: Black OxideAssembly Required: YesOil Model: SAE15W-40Flow: 15L/min, 4GPMPressure: 275 bar, 4000psiPower: 13hp, 10kWSpeed: 3400rpmInterface: 3/4'', 3/8''Shaft Diameter: 1 inchGross Weight: 10kg/ 22.05 lbs Package Size: 32*24*18 cm/ 12.6*9.45*7.09 inProduct Size: 30.36*25.63*20.29 cm/ 11.95*10.09*7.99 inPackage Included1* Pressure Washer Pump1* English ManualAll Accessories for InstallationNotes1.Please read the operating manual completely before use. And pay particular attention to the safety instructions included.2.It is only suitable for cold water use.

• 【Durable Brass Construction & Corrosion Resistance】Built to last with an integrated brass pump head and black-oxidized aluminum casing. This direct drive pressure washer pump resists rust and corrosion while maintaining steady pressure output, making it ideal for heavy-duty pressure washer replacement projects.
• 【Powerful 4000 PSI 4 GPM Cleaning Performance】Delivers up to 4000 PSI of steady water pressure with a 4 GPM flow rate, powered by a 13hp engine running at 3400 rpm. This pump for pressure washer excels at tackling dirt, grime, and debris on hard surfaces, significantly boosting cleaning efficiency.
• 【Wide Compatibility with 1" Horizontal Shaft Engines】Features a 3/4" NH garden hose inlet and 3/8" quick-connect outlet, making it a reliable pressure washer pump replacement for most 9-15hp horizontal shaft gas engines. Fits engines with a 1" hollow shaft (like Honda GX390) for seamless integration.
• 【Easy Installation & User-Friendly Design】Clear English manual and complete accessories are included for quick, accurate setup. The practical pressure gauge provides real-time feedback, allowing easy monitoring of the direct drive pressure pump during operation for optimal performance.
• 【Versatile Cleaning Tool for Home & Job Site】Whether you’re restoring siding, washing vehicles, or cleaning driveways and construction equipment, this high pressure washer pump is an ideal solution. It effectively handles everyday residential tasks as well as professional commercial cleaning applications.