CONDITION: New, open box. Pump is unused and complete with mounting hardware, detergent hose, vent plug, and shaft key. Shipped within one day of payment. ? DESCRIPTION: OEM-style VEVOR 4400 PSI pressure washer pump ? heavy-duty triplex plunger design with forged-brass pump head, oil sight glass, and an adjustable unloader (factory-set low for break-in). Provides powerful 4.0 GPM flow for residential or commercial cleaning jobs. The 1? horizontal shaft and standard SAE bolt pattern make this a reliable replacement for many gas-powered pressure washers using Simpson, Homelite, Troy-Bilt, and Honda-engine platforms. Ideal for walls, pavement, vehicles, equipment, or job-site cleanup. Features: ? 4400 PSI max pressure (2500 PSI factory-set for spring protection) ? 4.0 GPM flow rate ? 9?15 HP compatible engine range ? Oil sight window ? no dipstick needed ? Heavy-duty forged brass pump head ? High-hardness plungers for long service life ? Standard SAE bolt pattern for wide compatibility ? Works on horizontal-shaft engines only ? SHIPPING SELLER INFO: Ships fast ? 1-business-day handling. 30-day returns, USA seller. ? SEARCH KEYWORDS: pressure washer pump 4400psi 4gpm 1 inch shaft horizontal triplex replacement simpson honda troybilt vevor power washer Location: ST-139417-28