Horizontal 1” Shaft Pumps

If you need a replacement power washer pump 1" horizontal shaft, get one from PWOutlet.com. This pump size is common, thanks to the widespread use of 1-inch output shafts on single-cylinder and V-twin small engines. Our pump selector assistant can help you find the right horizontal-shaft pressure washer pump for your application. Still not sure if you’re ordering the right pump? We offer free 30-day exchanges on our 1" horizontal-shaft pressure pumps, so if it doesn’t work, you can send it back for a refund. We carry 1-inch horizontal-shaft replacement pressure washer pumps from top brands, including AAA, Annovi Reverberi (AR), CAT Pumps, Comet, General Pump, Karcher, Legacy, Udor and Viper.

Our replacement pressure washer pumps with 1" horizontal shafts are available with a variety of options, including different flanges and outputs and the option of built-in or bolt-on unloaders and thermal relief valves. We also offer kits that include common parts and accessories along with the pump.