Although I had to cut short the air line at the top of the compressor in order to use a bit of softer plastic tube to join to the existing fitting at the top of the pivot shaft, the installation all went well. The quality appears to be excellent and I expect the compressor to last another 20 years. I believe they DID use a graphite lubricant with the 6 bolts which secure the diaphragm to the piston, in order to avoid the seized bolts which made the replacement of my old compressor necessary, I withdrew each bolt and added anti-seize lubricant to ensure a long life.