Please fill out the form below for Reducer Ext 63 Tube To Int and get a quote for part number MS4397-151 by Lycoming Mfg Co, 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 MS4397-151. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.