Use Ctrl + F to search for your model number and verify compatibility. You can locate compatible model numbers by brand in the middle of this page description. This is a refrigerator compressor inverter control board, part # WR87X29409 (also replaces WR55X10855, WR55X11099, WR55X11138, WR55X20326, WR55X26038). A single-unit supply contains one inverter board engineered to manage compressor speed and cooling efficiency. Aids in restoring correct cooling performance and preventing warm refrigerator/freezer problems addresses issues such as no cooling or inefficient compressor operation. Designed for input 115-125 V 50-60 Hz and output 230 V 53-133 Hz