SWITCH

The MS21353-341 is a genuine Textron Aviation switch used to make or break an electrical circuit. It is applicable to the 1900D Airliner, Citation CJ1 or CJ1+, Citation CJ2 or CJ2+, and Citation Excel, XLS, XLS+, XLS Gen 2. It carries an export classification of ECCN 9A991, weighs 0.04 lbs, and measures 1.65 (L) x 0.95 (W) x 0.85 (H) in. Because the MS21353-341 is an original-equipment (OEM) part sourced directly from Textron Aviation, it matches the exact specification and placement called out in the aircraft's type design and maintenance data — assurance a generic substitute cannot offer. Across the Beechcraft 1900 and Cessna Citation fleet, correctly identified factory parts like this keep every airframe consistent and configuration-correct. Electrical and electronic components are defined by exact ratings and characteristics, so the specified part keeps the circuit performing as engineered. Choosing the genuine article over an unapproved part keeps mechanics' sign-offs clean and the aircraft's configuration exactly as certificated. Because aircraft parts are governed by strict airworthiness and traceability rules, fitting the OEM part rather than an unapproved equivalent keeps the installation eligible and the aircraft's records clean. Both the Cessna and Beechcraft lines are supported today by Textron Aviation, formed in 2014 to unite the two historic Wichita manufacturers with Hawker. The Beechcraft 1900, a 19-passenger regional airliner derived from the King Air, was produced from 1982 to 2002 and still serves commuter and cargo operators worldwide. To check availability, request a quote for MS21353-341 or browse more Beechcraft 1900 and Cessna Citation parts on Flying411.