This is a BRAND NEW OEM Trane/American Standard Start Capacitor. The capacitor is round and rated at 135-162 uf/MFD and 330 volts. The Trane Part # is CPT00091. It is 4 3/8" tall and 2.5" in diameter. If you need a size that we have not listed here, please contact us and we can get you a price and create another listing for that size. Thank you for looking!
A capacitor gives a motor a boost to get it up and running. Start capacitors help a motor/compressor get started, while run capacitors help a motor/compressor get started and run.