4200 PSI Pressure Washer Pump, 4.0 GPM, 28mm Shaft Triplex Plunger Pump, Direct-Drive Brass Head Replacement for 3-13.5 HP Motors – Horizontal Mount, SAE 15W-40 Oil Recommended

• 【Industrial-Grade Power & Precision】 Engineered for direct-drive 28mm shaft motors (3-13.5 HP), this triplex plunger pump delivers 4000 PSI (280 bar) pressure and 4.0 GPM flow—perfect for heavy-duty cleaning of driveways, fleet vehicles, and construction equipment. No belts or pulleys needed for seamless power transfer.
• 【Ultra-Durable Brass Construction】 Built to last with a solid brass pump head (corrosion-resistant) and hardened steel plungers, ensuring 3X longer lifespan than standard axial cam pumps. Max 1450 RPM operation reduces wear for extended durability.
• 【Optimized for Easy Maintenance】 Features a sight glass for oil monitoring and requires SAE 15W-40 oil (not included) for optimal performance. Pre-installed thermal relief valve prevents overheating, while the advanced oil seal minimizes leaks—ideal for commercial use.
• 【Universal Direct-Drive Compatibility】 Fits all 28mm shaft electric motors without adapters. Horizontal mount with 3/4" FNPT inlet and 3/8" FNPT outlet for easy hose connections. SAE-standard dimensions ensure hassle-free replacement.
• Reliable Performance Guaranteed】 21.5 lb weight-balanced design reduces vibration for smoother operation. 1-year warranty included. Note: Ships without oil—use SAE 15W-40 for best results. Oil change recommended every 60 hours of operation.

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