The Enginetech RMC325AP Premium Re-Ring Kit is designed for 2007-2013 GM vehicles with the 5.3L 325 LS Series Vortec OHV V8 engine, including models such as the Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Tahoe, and GMC Yukon. This premium kit features high-performance piston ring sets engineered for superior durability and sealing, along with rod bearing sets, main bearing sets, a thrust washer, and a full gasket set (including head and lower gaskets). Built to meet or exceed OEM specifications, the RMC325AP ensures precise fitment and reliable performance for re-ring or engine rebuild projects. Ideal for professional mechanics and enthusiasts maintaining GM 5.3L Vortec engines. Note: Confirm bearing and piston ring sizes and VIN codes (e.g., 0, 3, J, M) before ordering. Note: Kit photo is generic; actual parts shown individually.