Part Number 99-XXX-6B1-21373 Lens Cap in stock with ready to ship. Get an instant quote for Bombardier Aerospace part number 99-XXX-6B1-21373 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 99-XXX-6B1-21373. Our dedicated account manager will get back to you within 15 minutes.