Annovi Reverberi RSV4G40 Triplex Plunger Pump Assembly

The Annovi Reverberi RSV4G40 is a D-version triplex plunger pump designed for direct-drive coupling to gasoline engines via a 1-inch hollow shaft and SAE J609A/B flange. It delivers a maximum flow of 4.0 GPM (15.1 L/min) at 4,000 PSI (275 bar) operating at 3,400 RPM. The pump features a forged brass manifold, ceramic-coated stainless steel pistons, and bronze connecting rods rated for high-pressure durability. The crankcase is precision die-cast aluminum with cooling fins and anodized finish for heat dissipation. It includes an integrated adjustable unloader valve with EZ-start feature, thermal relief valve, and fixed chemical injector. Oil capacity is 16 oz (470 mL) of 30W non-detergent oil. Maximum fluid temperature is 140°F (60°C). Inlet port is 3/4-inch female garden hose; outlet port is 3/8-inch female quick connect. The unit weighs approximately 14 lbs (6.35 kg). This pump serves as original equipment on pressure washer models including Hyundai HYW4000P, HYW4000DE, P4200PWT, BE Pressure B4015RA, and Pure Power PPHW4015RA. It is compatible with engines such as Honda GX390 (13 HP), Powerease 420 (420cc), and LIFAN 192FE (14 HP) in the 9-13 HP range. Common manufacturer part numbers include RSV4G40HDF40EZ, RSV4G40-PKG, and RSV4G40D-F40. Cross-reference interchange numbers include EZ4040G, SJF-1807Q, RRV4G40, and APU-3192.