MEAN GREEN - MG Industries Inc. 2012-2018 3 Jeep JK MG1584. Price: $449Ford · Alternators · Dodge · Toyota · Diesel · Starters OEM vs. Mean Green Alternator??? | IH8MUD Forum Dec 15, 2016Mean green basically takes the stock case and builds it up as much as they can. For domestic alternators this is usually a significant improvement since they are underbuilt or only built to the required performance specifications.