This G4NA engine overhaul kit is absolutely comprehensive for rebuilding your Hyundai or Kia 2.0L engine! It includes literally everything you need: crankshaft, 4 connecting rods, full gasket set, pistons with rings, main and rod bearings with thrust washers, head bolts, 8 intake valves, 8 exhaust valves, and a complete timing chain kit. The timing chain kit alone contains CVVT sprockets for both intake and exhaust, primary timing chain, guide rail, tensioner arm, and timing chain tensioner. This kit fits numerous models from 2011-2022 including Hyundai Elantra, Sonata, Tucson, Creta, and Kia Forte, Soul, Sportage, and many others. All components are made to OEM specifications with matching part numbers for proper fitment. The quality seems excellent - everything is well-packaged and clearly labeled. Before ordering, definitely double-check your vehicle's VIN, engine model, and year to ensure compatibility. This isn't a beginner project - you'll need serious mechanical knowledge and proper tools for engine disassembly and reassembly. The 1-year warranty provides peace of mind, and the seller offers good support if you have compatibility questions. If you're facing major engine work on your Hyundai or Kia, this complete kit can save you significant money compared to buying individual components separately. Just make sure you're committed to the substantial work involved in a full engine rebuild!