View 0 Photos View 0 Videos GM/Chev (HD) 4.8 Engine Control Module (ECM) for a 2009 Workhorse Custom Chassis W42 $99.99 USD (Used) 2009 Workhorse GM/Chevy (HD) 4.8L ENGINE ECM - Part Number: Serial Number: Service Number: Warranty Security Tag: For more information about this item, give us a call. We ship... ConditionUsedFits To Make(s)Workhorse Custom ChassisFits To Model(s)W42Will Fit Year(s)2009Part Number129Stock NumberP-60584 MLS Number12349496CategoryEngine Control Modules (ECM) Last Updated7/28/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info