New Old Stock Crankshaft Sprocket for 1957-73 Mopar 318 Engines Models #1637657Crankshaft Sprocket This is a New Old Stock crankshaft sprocket for the Chrysler, Dodge, and Plymouth models listed below equipped with 318 cubic inch or 5. 2L V8 engines. Fits 1957 62 models with 318 CID and 1963 73 models with 318LA engines, including heavy duty and police. Original Mopar part in original packaging. Models Chrysler: All 318 equipped models Dodge: All 318 & 318LA V8 models, including heavy duty and police applications Plymouth: All