MUFFLER,DEUTZ SPARK ARRESTINGSpecifications Item Description This spark arresting muffler (part number 1001170224) is a replacement component for the Deutz D2011 engine used in JLG 450AJ and 450A aerial work platforms. The muffler reduces engine noise while suppressing spark emissions from the exhaust system. This part is included in the spark arrestor installation assembly and is typically installed as a single unit per engine. Skyworks is an authorized reseller of JLG parts.