Working on an LS engine swap or repair? This timing cover kit is a great all-in-one solution. It includes the front timing cover itself, a complete gasket set, and the 8 necessary bolts. It's designed to fit a huge range of GM vehicles with Gen 4 LS engines (like the LS2, LS3, etc.) that are NON-VVT (Variable Valve Timing). Think trucks and cars like the Chevy Silverado/Tahoe/Corvette/Camaro, GMC Sierra, Cadillac CTS, and many more from roughly 2005-2017 with 4.8L, 5.3L, 6.0L, or 6.2L engines. It replaces OEM part numbers 12633906 and 12600326. The quality is built to meet high standards. SUPER IMPORTANT: The fitment list is long, but you MUST double-check your specific vehicle year, model, and engine code before ordering. If you're unsure, message the seller. This kit saves you from buying pieces separately.