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 thermostat gasket fits 41-45 MB / GPW, 45-49 CJ2A, 48-53 CJ3A and 50-52 M38 models equipped with 134 cubic inch L-head engines. For replacement 180-degree thermostat, use 17106.02. For replacement 160-degree thermostat, use 17106.01. Replaces OE 639650