Our eBay Store About Us Contact Us Add to Favorite Sellers Amana Menumaster 20057401 $19.93 Amana Menumaster 20057401 Diode. This is a genuine OEM replacement part from Amana Menumaster. This is a genuine OEM (Original Equipment Manufacturer) part. Use genuine OEM parts for safety reliability and performance. This is a genuine OEM (Original Equipment Manufacturer) part. Use genuine OEM parts for safety reliability and performance. –>