- Can be used with 938066 Motion Pro cooling system test tool.

- Type-A adapter, designed to work on radiator necks ranging from 15.75 mm - 20 mm.

- Used to measure your radiator neck to confirm correct size for your application.

- Specified range is most commonly found on Japanese manufactured radiators, 2016 and up KTM, and can also be found on some late model water-cooled American V-Twins.

- Adapter only.