If you have engine trouble with your power washer, double check the air filter. A dirty filter reduces the flow of air to the carburetor which reduces performance over time. This aftermarket air filter was designed to meet or exceed the rigid specifications of the Honda GX Series. This quality air filter is specifically designed to fit all GX120, GX160, GX200, GX240, GX270, GX340, GX390 and 610KS-GX 620K1-GX 670 Honda Engines. MTM Hydro supplies high-quality aftermarket Honda GX Engine Parts.