Review on Four Seasons 58947 Compressor Clutch by Thomas Silva

This is a great replacement. It's the cheapest and the same compressor as over $200 + various # parts. I checked and found no difference. What convinced me to try this was that the weight was the same as the others. (It comes with 2 o-rings for the top hose connector. Pull out the old one. I didn't have locking ring pliers and they should be small. I sharpened my needle nose pliers and used a flat head jewelry screwdriver to gently loosen the o-ring. Slow but it worked. Note if you need to work on the little switch/insert, shake it a bit and this will loosen the o-ring holding it in place, it doesn't seem like it's moving, but keeps working and it will slip for 3 weeks and this unit appears to be a class A unit. And quiet when running. It would be hard to tell without a thorough analysis of how efficient it is but it seems with a to work small engine sump, that is, the speed drops as it turns.