Part Number 658566-6 Tfe731 3 1C To Tfe731 4 1C Convers in stock with ready to ship. Get an instant quote for Honeywell Inc part number 658566-6 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 658566-6. Our dedicated account manager will get back to you within 15 minutes.