Made in USA. Melling timing chain kits that also include the oil pump provide an efficient and economical way to replace the timing components needed for your engine rebuild and at the same time install a new oil pump. Timing chain options include both standard and roller chains to provide matches with the high quality sprockets and if necessary tensioner and guides that fit the application. Melling chains and sprockets are manufactured using the highest designs, quality materials and workmanship. Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials and are individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.