Sigma 1" Shaft 4000PSI High Pressure Washer Pump For Honda GX340 11HP GX390 13HP
This page is affiliate-supported. Prices and availability can change after the last marketplace refresh.
About this product
This Sigma high-pressure washer pump features a 1-inch shaft, designed to deliver 4000 PSI of pressure. It is compatible with Honda GX340 (11HP) and GX390 (13HP) engines, serving as a robust replacement or upgrade component. Identified by MPN 408732, this pump is crucial for the efficient operation of a powerful gas-powered pressure washer system.
Our take
Upgrading or replacing your pressure washer pump can make a huge difference in performance, and this Sigma pump, with its 1-inch shaft, looks like a serious contender for Honda GX340 (11HP) and GX390 (13HP) engines. Delivering a substantial 4000 PSI, it's clearly built for heavy-duty tasks. It's a branded Sigma pump, which often signifies a certain level of quality control. Just ensure your engine's shaft size and horsepower match the specifications for MPN 408732 to ensure a perfect fit.
Pros & Cons
Pros
- Delivers 4000 PSI pressure
- Compatible with Honda GX340/GX390 engines
- Features a 1-inch shaft
- Sigma branded pump
Cons
- Requires specific engine horsepower
- Higher price point
Specifications
- MPN 408732
- Brand Sigma
- UPC 666714408732