CAT PUMP MODEL 66DX40GG1 4 GPM 4000 PSI 3400 RPM FITS 1 GAS ENGINE SHAFT. Triplex plunger design provides a smooth liquid flow.Special concentric high density polished solid ceramic plungers provide a true wear surface and extended seal life. Built-in flange mount for easy, direct mounting to most gas engines. Eliminates the need for pulleys, belts, gear boxes. Modular regulating unloader with built-in bypass is standard for safety and pressure setting. Fixed chemical injector is standard and mounts directly onto unloader to provide cleaning flexibility. Maximum volume: 4.0 GPM. Maximum discharge pressure: 4000 PSI. Maximum pump speed: 3400 RPM. Horsepower requirements: 12.5 GHP. Inlet port threads: 1/2 FPT. Discharge port threads: 3/8 FPT. Crankcase oil capacity: 18 oz. The item "CAT PUMP MODEL 66DX40GG1 4 GPM 4000 PSI 3400 RPM FITS 1 GAS ENGINE SHAFT" is in sale since Friday, January 24, 2020. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Outdoor Power Equipment\Pressure Washers". The seller is "prontopsisupply" and is located in Seneca, Pennsylvania. This item can be shipped to United States, Canada.