The replacement arrived as expected and is of OEM quality. Just a few suggestions though. There are 2 O rings that need to be replaced when completing the replacement that should be included to save having to run out, size them and then replace them. I'd pay the 2 extra bucks to have them included. There was no where near the grease in the gears as seen in the original. The old looked to use a GP grease so I packed it up same as seen when I removed the old. Just a note in the instruction on this would be helpful as shipping with that much grease might be a mess on the receiving end. When first starting the pump I had a good amount of leakage from the weep hole. At first I thought it was a bad pump. Then I thought it might be using old school seals on the piston that would need to be wetted out to expand. After several cycles of pressurizing and moving paint through the pump it slowed and stopped. Assuming I'm correct, an note in the instruction would be a good idea. I put the sprayer to work the next day and have put over 20gal through it with no problems - back in business!