Answer Hello Steve, You need to refer to the serial number on your unit to determine which valve you will need. The first two digits of the model number serves as the series number. If it begins with 19 or lower, you will need to order part number WP22001274. If the serial number begins with 20 or higher, you will need to order part number WP22002360. Read More... Answered by AppliancePartsPros.com | Tuesday, June 19, 2012