OMIX proudly offers all the parts you need to keep your Willys Jeep running like new with quality standards that always meet or exceed those of the factory part. This replacement exhaust catalytic converter fits 87 - 92 Wrangler YJ models equipped with 2.5 - liter engines and 91 - 92 Wrangler YJ Cherokee XJ models equipped with 4.0 - liter engines. Features a 4 - bolt welded input flange, a 2.25 - in. output and a 21.75 - in. overall length. Replaces OE 52018104