Set of 4 Melling GM LS Engines Active Fuel Management Deactivation Lifters 4-Pack. Part # JB-7011 / GM # 12569256.Melling Lifters Are USA MADE. Fits: Chevy GM 5.3L 6.0L LS Engines WITH The AFM / Active Fuel Management System aka "DOD". Use The Compatibility Guide To Verify Fitment or Message Us With Any Fitment Questions. We also sell a complete kit to change ALL lifters and lifter guides. The item "Melling JB-7011 Chevy LS Active Fuel Management / AFM Deactivaing Lifters 4 Pack" is in sale since Wednesday, September 27, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Camshafts, Lifters & Parts". The seller is "fap_engineparts" and is located in Ontario, New York. This item can be shipped to United States.