Simpson 90039 Pressure Washer Pump – 4000 PSI @ 3.3 GPM
Engineered for the tough jobs, the Simpson 90039 4000 PSI 3.3 GPM Pressure Washer Pump can do the job with effective results and minimal engine use. This AAA Triplex pump comes with a 5 year limited warranty & dual over sized ball bearings for better wear, friction resistance & longer lasting performance.
- PSI: 4000
- GPM: 3.3
- Shaft Diameter: 1 in.
- Inlet Pressure Range: 10-60 PSI
- Inlet: 3/4 in. Garden Hose
- Outlet: 3/8 in. Quick Connect Female
- Thermal Relief Port: 1/2 in. FNPT
- Pump Oil Capacity: 11.0 fl oz.
- 4000 PSI @ 3.3 GPM
- PowerBoost Technology
- Fully adjustable unloader system with ergonomic control
- Sight glass and advanced oil seal technology, does away with the need for a dipstick
- Thermal relief protection to prevent pump overheating
- Dual oversized radial ball bearings are installed for better wear, friction resistance and precision ceramic coated pistons for extended seal life
- Crankcase is manufactured from fully anodized die cast aluminum for corrosion protection and is sealed to prevent contamination and lube failure
- Gas engine flange and hollow shaft that fits most horizontal shaft engines
- Pump includes a chemical injector kit, mounting bolts, and shaft key
- Forged brass Head
Always verify part numbers in your owner’s manual