Pulled from a 2012 Mercedes-Benz E350, this is a genuine OEM Harman Becker audio amplifier, part number A2129007108 (Model No. 9008). It is in excellent used condition with clean terminals and no broken fins or mounting tabs. This unit was used with the factory Harman Kardon premium sound system and may fit a variety of 2010–2012 Mercedes-Benz vehicles including:E-Class (E350, E550, E63 AMG)CLS-Class (CLS550)GLK-Class (GLK350)Part Numbers on Label:LU: A2129007108HW: A1729012100ZGS: 002Manufacturer: Harman Becker Q01Made in Germany12V, 2011/12/05 manufacture dateNOTES:Tested for power and connector integrity only (not full audio bench test).Buyer responsible for confirming compatibility with their specific vehicle trim and system.Ships well-padded and protected.Please match your current unit’s part number and plugs before purchase.