Pressure Washer Authority is pleased to offer the AR Pump - RKA4G30 - RKA4G30AN - 1750 RPM N Version 24mm Solid Shaft - Aluminum Rods. We are working hard to become your number one source for pressure washers, pressure washer pumps, and General Pump pressure washer pumps. We are The Pressure Washer Authority featuring LOW PRICES! and FREE SHIPPING! on all of your pressure washer and high-pressure power cleaning needs.