JDMSPEED (8+8) Pcs Hydraulic Roller Lifters Compatible with 2007-2012 Chevy GMC Cadillac Buick 4.8L 5.3L 6.0L 6.2L Valve Lifters Active Fuel Management AFM DOD Roller Lifters

Features

• 【Fitment】:Compatible with Chevrolet GMC Buick Cadillac GM 4.8L 5.3L 6.0L 6.2L Engines with AFM 2007-2012.Compatible With Buick Allure Lacrosse; Compatible With Cadillac Escalade; Compatible With Pontiac G8; Compatible With Chevrolet Avalanche Caprice Express Impala Silverado Tahoe; Compatible With GMC Savana Sierra Yukon.
• 【OEM Part Number】:Replaces 12569256, 12571595, 12632143, 12619820, 12639516, 12645725, 12680871, 17122490, 17120735, 12499225, 12576400, 12648846, 25341990, 5235498, 5234890, 5234670, 5233745, 17121905, 17120090, 17089852, 5234660, 17109057.
• 【Function】:Hydraulic adjustment is adopted to automatically adjust the appropriate valve clearance state to prevent valve mechanism wear and noise.
• 【Package Includes】:A set of valve lifters (enough for one bank) required for AFM V-8 engine 8x AFM Lifters, 8x Roller Lifters. No instructions included,professional installation is recommended. Please fill the valve lifters with No. 68 hydraulic oil(pre-added in the lifters) when installing.
• 【Hydraulic Valve Lifter】:The hydraulic lifter uses oil pressure to adjust a plunger and eliminates the need of having to adjust the valves clearance regularly in the valve train. This helps to ensure less engine noise and high performance.If you have any questions about the product, please contact us by Amazon message.