The Reinz Cylinder Head Bolt Kit - 137996 is a comprehensive kit of products designed for use on a car's cylinder head. This kit includes various components that are essential for proper installation and maintenance of the cylinder head. The exact contents of the kit may vary, but typically it includes a set of high-quality bolts specifically designed for cylinder head applications, as well as any necessary gaskets, seals, and other hardware. These components are crucial for ensuring a secure and leak-free seal between the cylinder head and the engine block, as well as for maintaining proper compression and combustion within the engine. The Reinz Cylinder Head Bolt Kit - 137996 is a convenient and cost-effective solution for those in need of a complete set of products for their car's cylinder head.