Yotoy 8pcs Active Fuel Management AF-M DOD Valve Lifters For Chevy GMC 5.3L/6.0L/6.2L

8pcs Active Fuel Management AF-M DOD Valve Lifters For Chevy GMC 5.3L/6.0L/6.2L Feature: The main function of valve Lifters is to convert the rotary motion of cams into reciprocating motion. The camshaft of the engine with this structure is not set on the top of the engine The valve lifters uses hydraulic force to adjust the clearance. Hydraulic tappet mainly consists of plunger, one-way valve and one-way valve spring. By using the function of one-way valve to store or release oil, the working length of hydraulic tappet can be changed by changing the oil pressure in the tappet body cavity, so as to automatically adjust the valve clearance Replace part number For reference : HT-2303,12569256, 12571595, 12639516, 12645725,12619820,HL177, HL178, HL7011S High quality,You must order 2 if a full set is needed Professional installation in highly recommended (No instruction included) Item specifics: Condition:New Fitment Type: Direct Replacement Manufacturer Part Number:12569256, 12571595, 12639516, 12619820, 12645725 Interchange Part Number:HT-2303, HL177, HL178, HL7011S Fits: For Buick Allure 2008-2009 For Buick Lacrosse 2008-2009 For Buick Rainier 2005-2007 For Cadillac Escalade 2007-2012 For Chevy Avalanche 2007-2013 For Chevy Camaro 2010-2012 For Chevy Caprice 2011-2013 For Chevy Impala 2006-2009 For Chevy Monte Carlo 2006-2007 For Chevy Silverado 1500 2007-2013 For Chevy Suburban 2007-2013 For Chevy Tahoe 2007-2013 For Chevy Trailblazer 2005-2008 For GMC Envoy 2005-2009 For GMC Sierra 1500 2007-2013 For GMC Yukon 2007-2013 For GMC Yukon Denali 2007-2008, 2010-2012 For Pontiac G8 2008-2009 For Pontiac Grand Prix 2006-2008 For Saa-b 9-7X 2006-2009 The Package Include: 8 pcs Lifters Note: Due to the transportation process, the AFM Lifters are not filled with oil or not filled with much oil.You need to fill them yourself or ask a professional for help.After oil filling and installation, let it idle for 20 minutes first. If there is noise in the process, it doesn't matter. There will be no noise after 20 minutes. If you have any problems, please feel free to contact us

A useful and versatile item for every family Reasonable modelling design can make better use of it Quality is guaranteed, please rest assured to buy