Part Number D4524-5556-1 Stud Assembly Turnlock Fastener in stock with ready to ship. Get an instant quote for Trane Co The part number D4524-5556-1 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for D4524-5556-1. Our dedicated account manager will get back to you within 15 minutes.