HomePressure Washer PumpsAAA 90039 Horizontal Triplex Plunger Replacement Pressure Washer Pump Kit, 4000 PSI, 3.5 GPM, 1" Shaft, Includes Hardware and Siphon Tube, for Industrial Gas Powered MachinesAAAAAA 90039 Horizontal Triplex Plunger Replacement Pressure Washer Pump Kit, 4000 PSI, 3.5 GPM, 1" Shaft, Includes Hardware and Siphon Tube, for Industrial Gas Powered MachinesBest Seller Rank HistoryNow#24Best#7Worst#3,651 -11Lower = better sales rankRating TrendRating4.1/ 5Reviews240+-755 reviews -0.21Similar ProductsAAA 90036 Horizontal Triplex Plunger Replacement Pressure Washer Pump Kit, 3200 PSI, 2.8 GPM, 3/4" Shaft, Includes Hardware and Siphon Tube, for Industrial Gas Powered Machines, Black0.0(247)$289.580SIMPSONAAA 3700 PSI 2.5 GPM Replacement Triplex Pressure Washer Pump Kit for SIMPSON Gas Power Washer Pumps, 3/4" Shaft, Horizontal Engine Fit, PowerBoost (90037)0.0(513)$259.990AAASimpson 4400 PSI Gas Pressure Washer, 4.0 GPM Commercial Power Washer, Cold Water, 50' Hose, PowerShot, 49-State Compliant (PS60843)0.0(1,304)$899.000SIMPSONTOOLCY Pressure Washer Pump Max 4400 PSI 4.2 GPM, 1" Shaft Horizontal Gas Power Washer Pump Replacement, Direct Drive Triplex Plunger Replacement Pump with Pressure Adjustment Unloader, 5 Nozzle Tips0.0(339)$206.980TOOLCYMUTURQ 1" Shaft Horizontal Triplex Pressure Washer Pump, Replacement Pump Compatible with Simpson 90034 90039 41113 41028 41030 41115 General pump TS2021 EZ4040G RSV4G40-PKG, Max 4000 PSI & 4.6 GPM0.0(77)$189.990MUTURQTOOLCY Pressure Washer Pump 3600-4400 PSI Max 4.4 GPM, 1 inch Shaft Horizontal Triplex Plunger Power Washer Pump Replacement, Direct Drive Pressure Pump with Unloader, 5 Nozzle Tips, M22-14mm Adapter0.0(92)$198.980TOOLCYYAMATIC Horizontal Triplex Plunger Pressure Washer Pump 1" Shaft 4000 PSI 4 GPM, Replacement for Simpson AAA 90034, 90039,90038, Honda GX340, GX390, GX270 for Industrial Gas Powered Washers0.0(65)$189.990YAMATICUser ReviewsPlease sign in to leave a reviewSort by:NewestHighest RatedMost HelpfulNo reviews yet. Be the first to review!