The Enginetech RMC325BP Premium Re-Ring Kit is engineered for 2003-2006 GM and Isuzu vehicles with the 5.3L 5328 OHV V8 engine, including models such as the Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Tahoe, and Isuzu NPR/NPR-HD. This premium kit features high-performance chrome piston ring sets for enhanced 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 RMC325BP ensures precise fitment and reliable performance for re-ring or engine rebuild projects. Ideal for professional mechanics and enthusiasts maintaining GM or Isuzu 5.3L V8 engines. Note: Confirm bearing and piston ring sizes and VIN codes (e.g., B, M) before ordering. Note: Kit photo is generic; actual parts shown individually.