Part Number 4525403131-003-603 Cap Trim Upr Rgtr Aft Lav in stock with ready to ship. Get an instant quote for Bombardier Aerospace part number 4525403131-003-603 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 4525403131-003-603. Our dedicated account manager will get back to you within 15 minutes.