The Evolution EP Series from General Pump is a next-generation triplex plunger pump line engineered for professional pressure washing and industrial cleaning applications.

Engineered and manufactured in Italy, these pumps deliver up to 4,000 psi in flow rates between 2.1 to 4.2 gpm while featuring a forged brass manifold, oversized forged crankshaft and connecting rods, premium bearings, and a redesigned crankcase with increased oil capacity for improved cooling and longer service life. Patent-pending innovations including solid ceramic plungers with a dual guide system, optimized outlet valves for greater volumetric efficiency, dual-lip oil seals, and an advanced sealing system work seamlessly to reduce friction, extend seal life, and enhance overall reliability.

Available in solid shaft and hollow shaft configurations for electric or gas engines at speeds of 1750 and 3400 rpms, the Evolution EP Series offers versatile, high-performance solutions built for durability and long-term performance.