Product review (4 stars): Great Compressor Starter But The Wiring Leads Leave Something To Be Desired
I had a spare refrigerator compressor that I modified into a vacuum pump for air conditioning work.  I didn't have a starter for the compressor so bought this one with the hopes that it would do the job.  It does indeed work perfectly and from a functional perspective I've got no complaints.

The problem I have is the pin connectors for the Tecumseh compressor plug can swivel around and short each other out.  This may not be a problem if you're putting this item in an appliance but even then I'd be a little nervous about them moving around.  Ultimately I put some heat shrink tubing on the connectors so if they do spin around on the pins, the will not short.

There's also no great way to attach the starter.  It's got a plastic clip on it kind of like a belt clip on a knife which you really can't slide onto anything.  I used a couple of zip ties to do the job.

None of these detract from the fact that this starter works excellently on Tecumseh style 3 pin compressors.  Just be aware that like with any generic part you'll have to do a little engineering to make it work.