Plunger pumps are designed for a wide variety of high pressure washing applications and the Annovi Reverberi Pump RKV4G40HD-F24, 4000PSI@4GPM, 3400RPM (RKV4G40HD-F24) is no exception. It is constructed with a die-cast body and features a forged brass head. Precision cast cooling fins are anodized for maximum heat dissipation. Oversized tapered roller bearings and the precision supports assure proper shaft alignment and maximum life. Valve cages of special designed Ultra-Form provide positive seating and extended life. One-piece connecting rods are either a special alloy aluminum or bronze oversized for strength and load disbursement.