MTR,
Okay, I see what I'm missing. The picture shows the piston IN the sleeve and that's why I can't see the sleeve and seal separately. My apologies.

Just for reference, what is the diameter of the piston in the 1903 kit? And what is the ID of the piston rod?

Just looking at the pictures, it looks like the 1901 kit might be a better match based on the head gasket shape. What is the diameter of the piston in the 1901 kit? And what is the ID of the piston rod?

John

MTR,
Wow, the manufacturing drawings your provided for the 1903 kit were really helpful. I measured my piston and sleeve and they match the dimensions on the drawings for the 607162 piston (my piston has "162" stamped under the head just like the drawing states). There is no part number stamped on my sleeve, but the dimensions match those of the 615505 drawing.

The only part of the 1903 kit that doesn't match my compressor is the head gasket. Again, it looks like the gasket of the 1901 kit is the right shape but I wonder if the piston and sleeve in the 1901 kit are the same as those in the 1903 kit. Were you able to dig up any drawing for the 1901 kit?

Getting the right repair kit would be a whole lot better than trying to mod my compressor to work with the SK120780 kit parts. Now that I've done a little more research, with a lot of help from you, I'm going to contact the person who gave me the kit and see if we can work something out with the right kit. I'll let you know.

John

MTR,
Thanks for getting the manufacturing drawings for the 1901 kit. The piston and cylinder sleeve are not the same as those in the 1903 kit. Interesting. Since the 1903 parts are a match to my compressor parts, except for the head gasket, it looks like the 1903 kit is the one I would need.

I'm still waiting to hear back from the person who gave me the SK120780 repair kit. Then I'll decide what to do.

John