The most reasonably priced component used on the Jr50 1987 (h) Usa (e03) Cylinder is the Nut.
The sub assemblies and components that make up this Cylinder include this Cylinder, the most expensive part.
A sample from the products for the Cylinder include: Gasket Set (mca), Washer,lock, Gasket,cylinder Head (nas), Plug,spark(bp4h).