Comet ZWD 4040G 4 GPM 4000 PSI Pressure Washer Pump for 1" Hollow Shaft Engines - Fully Plumbed with Unloader External Bypass - Ideal for Heavy-Duty Cleaning, Car Washing, and Industrial Use

Easy to install and I plugged the bottom return the water flows through consistently fresh water going through pump when trigger is off excess just spills on ground no worrying about overheating pump anymoreUsed it for a few hours and it runs well. Was an easy installThe purpose works as intended, fast delivery, easy to install, thanksMy Simpson commercial series 4400psi pressure washer isn’t used often however the original AAA pump failed blowing water and oil everywhere with about 8hrs of use on it. I take care of my equipment and this isn’t the first AAA pump I have had to replace. This time I decided to try the comet ZWD 4040G pump instead of the AAA pump. So far I did my spring concrete cleaning and it performed just as good as my old pump (when it worked). So far great pressure, no leaks. Easy to install onto my motor (14Hp Kohler Command Pro).I also purchased the extended warranty thru Amazon in case something happens to this pump but hopefully I will have better luck with it than the AAA pump. Will update review if anything changesEasy to installPut this on my Honda GX390 and fired it up. Works great. No issues at all. The Karcher it replaced was a manufacture discontinue so I had no choice but to look at something else. It was between this and a CAT. Since I dint use it every day I decided to save a couple of hundred and buy this one...so far so good. If it ever craps out I will update this review. Overall seems to be a goo value for the $$$...JimUpgraded my 3750 pump to this 4000 psi pump. I purchased this pump for all the right reasons. My 3750 pump cost 579 to repair, that's right, repair. This was a no brainer when I found out that this pump was compatible with my Honda engine. The switch was so easy I hate that I wasted so much time working to fix my old one. Moral of the story, don't repair, just replace with an upgrade.Great pressure