PRODUCT FEATURES 66 Series Triplex Plunger Pump Forged brass manifold with an exclusive lifetime warranty Innovative seal design to extend seal life Plunger design improves themal shock resistance New valve cap design improves hydrostatic performance 8.5 GPM maximum 3600 PSI maximum 1750 RPM maximum Minimum Horsepower Requirements:19 bhp (25 hp For Gas Engine) 165 F maximum temperature 24mm shaft diameter Inlet Port: 3/4" FPT Discharge Port: 3/8" FPT Crankcase Capacity: 31 oz Weight: 40 lbs Reviews Featured Products GP Pump Packing & Seal Kit 170 $151.31 Add to Cart GP Pump Kit 169 $192.90 Add to Cart General Pump GP Hose Reel Swivel (Universal) 1/2" FPT x FPT $82.53 Add to Cart General Pump GP Stack Kit $90.63 Add to Cart