This is a used Comet ZWD K-3538 Power/Pressure Washer Pump that was attached to a Honda GX270 engine (9hp). This pressure washer is rated at 3800psi and was mounted on a Dewalt Pressure Washer.

The pressure washer pump has low power - the unloader was rusted so I replaced it with a new one, although even with a new unloader there's nowhere near 3800psi of pressure on it so based on my previous experience with these units, it likely needs a rebuild/overhaul. There's a couple of websites out there that sell rebuild kits, I don't have enough experience with rebuilding so for me I just buy a new pump as it's quicker for me.

It comes as pictured - the quick-disconnect fitting on the output of the pump was removed so I can transfer it to my new pump. The pump is sold as-is with no guarantees. It did work (leaks out the side port as there's no cap on it) but as mentioned the pressure was low and nowhere near what it should be.

Listing Includes: 

• Comet ZWD K-3538 3800psi Pressure Washer Pump (as-is)