Omix Gas Tank Large Filler Neck 43-45 Willys MB & GPWOmix 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 steel fuel tank fits 43 45 MB GPW models. The tank features the large fill opening, fuel line bung on tank bottom and a drain plug. Tank has a 15 gallon capacity. Uses a 5 screw sending unit (17724. 23). For tank strap kit, use 12028. 28. Replaces OE A 6618