16Pcs Active Fuel Management AFM DOD Valve Lifters For Chevy GM 5.3L 6.0L Description【Name】Active Fuel Management Valve Lifters, Hydraulic Lifters,AFM DOD Lifters,Engine Valve Lifter, Hydraulic Tappet, Hydraulic Lash Adjusters.
【ydraulic】The valve clearance is adjusted hydraulically, eliminating the need for adjusting screws and nuts, and reducing engine noise.High quality, direct replacement, easy to install.
【Fitment】Hydraulic AFM lifters compatible with 5.3L 6.0L 6.2L Chevy GMC Cadillac Buick Isuzu Saab 2005-2018, LS V8 Engines with AFM.
【Part Number】Replaces 12569256, 12571595, 12632143, 12619820, 12639516, 12645725, 12680871.
【WARRANTY】We offer 3 months warranty and lifelong customer service. If you have any questions about the product, please contact us by message.✨Features1.The hydraulic roller lifter is designed to compensate for this small tolerance, so that the valve train operates under the condition of zero clearance, the operation is quieter, the engine life is longer, and there is no need to adjust the valve clearance regularly.2.All our parts are strictly tested for quality and manufactured to improve performance. These steps are to control the quality of components that can work for a long time.3.Replacement Hydraulic Roller Lifter - also known as tappets, these mechanisms converts the rotation of the camshafts into a vertical motion. Hydraulic lifters keep a constant space between the valves and camshaft lobes which adds complexity to the valvetrain, ensures the perfect timing and adds more horsepower to the engine.Replacement OEM17122490, 17120735, 17121905, 12499225, 2534999412564012, 12576400, HL124, H124, H128, HT-2148JB-2079, HL-2148S, A2148, B2148, 850-16, 10530-16, HL124-16K77081-61416, 91113, 12639516, 12571595, 1256925612619820, 12632143, 17122490, 1264572512680871, HL178, HL177, HL7011S, HT-2303Note
The package contains oil, which is a normal phenomenon, and it will be excessive oiling at high Brand New
Warranty: 90 DayFree Return:30 DayColor:SilverMaterial:High quality steel Size:As picture ALLURE 5.3L
2008-2009 LACROSSE 5.3L
Cadillac
2009-2012 ESCALADE 6.0L
2007-2008 ESCALADE 6.2L
Pontiac
2008-2009 G8 6.0L
2007-2012 AVALANCHE 5.3L
2007-2009 AVALANCHE 6.0L
2011 CAPRICE 6.0L
2009 EXPRESS 2500 4.8L
2009 EXPRESS 3500 4.8L
2007-2009 IMPALA 5.3L
2007 MONTE CARLO 5.3L
2007-2012 SILVERADO 1500 5.3L
2007-2012 SILVERADO 1500 6.0L
2007-2012 SUBURBAN 1500 5.3L
2007-2009 SUBURBAN 1500 6.0L
2007-2012 TAHOE 5.3L
2008-2012 TAHOE 6.0L 2009 SAVANA 2500 4.8L
2009 SAVANA 3500 4.8L
2007-2012 SIERRA 1500 5.3L
2007-2012 SIERRA 1500 6.0L
2007-2012 YUKON XL 1500 5.3L
2007-2009 YUKON XL 1500 6.0L
2007-2012 YUKON 5.3L
2007-2009 YUKON 5.3L
2012 YUKON 6.0L
2008-2009 YUKON 6.0L
2007-2008 YUKON 6.2L
Please Double-Check that this is compatible with your vehicle.
✨Installation stepsBefore installationWhen installingAfter installation (testing)1.Check whether the oil is clean and whether the recommended grade of oil is used; Note: The grade of oil used in winter and summer is different! If winter is 10W30, summer is 15W40.
2.Check that the engine cylinder head bore is not out of tolerance and that the maximum matching gap is not allowed to exceed 0.10 mm. note: it must be ensured that the standard size of the hydraulic tappet cannot be fitted into the large cylinder head bore!
3. Before mounting, place the hydraulic tappets in groups in an oil bath for at least 4 hours, then test the centre plunger repeatedly with your finger in the oil until it feels firm.1.Try not to rotate the camshaft during installation, if this is unavoidable, it should be minimised as much as possible;.
2.Continuous rotation of the camshaft is less harmful than stopping of the camshaft;.
3.If continuous time rotation and stopping is unavoidable, the camshafts should also be kept in different directions.
4.Do not tilt or invert the engine during hydraulic tappet installation to prevent oil spillage into the hydraulic tappet chamber; 1.2.5 Do the refuelling procedure before starting the engine, as this reduces the chance of air entering the hydraulic tappets;1.In some cases (repeated starting/cold starting/overhaul of the engine), the valve train produces an abnormal sound;
2.If the abnormal sound occurs during the first engine run (after overhaul), the engine must be run at a constant speed of 2500 RPM for approximately 4 minutes; 3 Then, allow the engine to idle for approximately 4 minutes.
3.Then, allow the engine to idle for approximately 30 seconds.
4.At this point, the abnormal sound disappears, indicating that the hydraulic tappet is fully vented. If the noise persists, repeat the above cycle.
5.This abnormal noise can be reduced by up to 90% after the first cycle.
6.In some cases, the above cycle can be repeated 5-6 times; 1.3.7 If the abnormal sound can be heard after repeating the cycle 5-6 times, the hydraulic tappet should be replaced. ✨Package IncludedAs pictures show
FAQ:
I purchased by mistake, how do I cancel the order?
Please contact us ASAP. If the item has not been shipped out we can cancel the order for you. If the item was shipped out you can refuse the package and wait for the item to return to us.
I received your item but it does not fit or is defective
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Our quality is based on meeting the requirements of the manufacturer and improvement them in design problems manufacture.
NOTE:(1)It would be highly appreciated if you might contact us first once you have any problems concerning the items. And you can expect all the issues would be resolved ASAP!(2)Please let us know before you send us the neutral/negative response that wont help to finish the issues. And I will definitely try my best to provide the best solutions which would meet our satisfactory!(3)According to the distance of the receipt address items would be sent from CA or NJ(4)This product does not include an installation manual
