Omix proudly offers all the parts you need to keep your WillysJeep running like new with quality standards that always meet or exceed those of the factory part. This replacement crankshaft pulley fits 41 - 45 MB GPW, 45 - 49 CJ2A, 49 - 53 CJ3A, 50 - 52 M38, 52 - 71 M38A1, 53 - 67 CJ3B, 55 - 71 CJ5 CJ6, 48 - 51 Jeepster models equipped with 134 ci engines. Pulley features dual grooves and measures 5.125 - inches OD and is 1.5625 - inches thick. Replaces OE 646698