







⚡ Upgrade your clean game with power and precision!
The AAA 4400 PSI 4.0 GPM Replacement Pressure Washer Pump Kit is a robust, easy-to-install upgrade designed for gas pressure washers with horizontal engines and a 1" shaft. Featuring PowerBoost Technology, dual oversized bearings, and an oil sight glass, it delivers industrial-grade cleaning power while extending your equipment’s lifespan. Compatible with standard SAE bolt patterns and popular hose connections, this pump kit offers a professional-grade solution backed by a 5-year warranty.











| Brand | SIMPSON |
| Color | Black |
| Material | Brass, Black Aluminum |
| Style | 4400 PSI at 4.0 GPM |
| Product Dimensions | 11.5"L x 11.5"W x 11"H |
| Power Source | Gasoline |
| Item Weight | 16 Pounds |
| Maximum Flow Rate | 4 Gallons Per Minute |
| Global Trade Identification Number | 00879399002335 |
| Manufacturer | simpson |
| UPC | 879399002335 |
| Part Number | 90034 |
| Item Weight | 16 pounds |
| Country of Origin | China |
| Item model number | 90034 |
| Is Discontinued By Manufacturer | No |
| Thickness | N/A Inches |
| Item Package Quantity | 1 |
| Measurement System | US |
| Included Components | Pump Kit |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 5 year warranty |
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