This is the only engine rebuild kit on the market that is for an OEM engine. This is a complete engine rebuild with all OEM gaskets and hardware directly from BRP. The base kit includes 14 different engine components with additional upgrade options. Upgrade options such as ARP Head Studs, CP Carillo Pistons, and CP Carillo Connecting Rods. This kit does NOT include engine oil, coolant, assembly grease, user's manual.