Please fill out the form below for Mag Ign Sys 10 785046 109 Harn 10 and get a quote for part number 66E21550 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 66E21550. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.