4000 PSI Replacement Pressure Washer Pump fit for RRV4G40 Brand New by | Jul 21, 2026• Triplex Plunger Pump. Exhaust Pipe Stretcher Expander Tool Kit 1-5/8″ to 4-1/4″ Drive tool New. Pump Speed: 3400 RPM. • Direct Drive with Gas Flange 9.0-13.0 HP SAE. • Drive Side: Standard right. • Forged brass head.