This fuel tank cap is a direct OEM replacement designed for use on various vintage Honda motorcycles and ATVs, specifically for auxiliary and sub-tank applications. Manufactured to meet or exceed OEM quality, it ensures reliable sealing performance and is factory tested for durability and fit. Features Direct OEM replacement Factory tested for 100% reliability Designed to handle increased power loads Refer to image before ordering to confirm compatibility Specifications Application: Fuel cap for auxiliary/sub-tank use Cross-Reference OEM Part Numbers 17610-102-730 17620-102-730 17620-044-000 17620-114-000 17620-035-405 17620-035-000 Vehicle Fitments 1967–1968 Honda P50 "Little Honda" 1970–1975 Honda QA50 K0–K3 1969–1979 Honda CT90 K1–79 Trail 90 (Auxiliary Tank Only) 1980–1986 Honda CT110 Trail 110 (Auxiliary Tank Only) 1973–1978 Honda ATC70 K0–78 1970–1978 Honda ATC90 K0–78