4PCA AFM Roller Lifters Valve Lifters Compatible with 2005-2013 GMC Chevy Pontiac 5.3L 6.0L 6.2L Engines Active Fuel Management

Description: 100% Brand New Items, Never Used Or Installed High Performance GM hydraulic roller lifters and a full set of OEM Guides. These are Genuine GM lifters and Guides in plain packaging. Fits LS2, LS3, LS7 Use these lifters along with an LS3 Valley cover to eliminate DOD ( Displacement on Demand) used in newer model engines. High quality Professional installation in highly recommended (No instruction included)​​ Cross Reference for Lifters Lifters Comp Cams - 850-16 Crane Cams - 10530-16 Howards - 91113 Sealed Power - HT-2148 ACDelco - HL124 Guide Number - 12595365 💎Fitment:💎 2008-2013 Chevy Avalanche 2012-2013 Chevy Corvette 2009-2013 Chevy Silverado 1500 2009-2013 Chevy Tahoe 2011-2013 GMC Sierra 1500 2009-2009 GMC Sierra 1500 2009-2013 GMC Yukon 2010-2013 Cadillac Escalade Compatible with 2009-2009 Hummer H2 2009-2009 Pontiac G8 Package Includes 16 pcs Lifters 4 pcs Guides As shown in the picture​. Terms of Sale: Sometimes things can go wrong no matter what. As a responsible seller, we help in any problem, such as damaged goods, defective products, unclear descriptions, or etc., that you consider as a dissatisfaction, the door to our Customer Service is always widely opened for you. Please let us know how we can help if you needed ANYTHING ANYTIME!

Function:Adjust the valve on the vehicle engine to improve vehicle performance. It is possible to replace hydraulic tappets that do not work or are unstable.Manufacturer Part Number: HT2303 12645725, 12571595, 12639516, HL177，HL178，HL7011S; Interchange Part Number: Topline Johnson B-12303/Melling JB-7011; Other Part Number: GM/AC Delco 12619820