Product Overview 66DX40GG1 4 GPM 4000 PSI 1" GAS SHAFT FEATURES: 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 SPECIFICATIONS: Maximum volume: 4.0 GPM Maximum discharge pressure: 4000 PSI Maximum pump speed: 3400 RPM Horsepower requirements: 12.5 GHP Bore: 14mm Stroke: 10mm Shaft diameter: 1" hollow Inlet port threads: 1/2" FPT Discharge port threads: 3/8" FPT Maximum liquid temperature: 100 F Crankcase oil capacity: 18 oz Weight: 27 lbs. Reviews (No reviews yet) Write a Review