Please fill out the form below for Unit Altitude Controller 2203K and get a quote for part number 4000225-8503MOD 45 by Embraer Aircraft Holding Inc, please include required quantity along with expected turn around time. Our knowledgeable account manager will reply you shortly. Also check for the related parts for part number 4000225-8503MOD 45. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.