Details:
1. Fits Jesse James Chopper Tanks, West Coast Choppers tanks and many other aftermarket Chopper Tanks
2. Vented cap
3. Made from 6061-T6 Billet Aluminum & hard ABS plastic
4. Diameter of top: 1-5/8"
5. Diameter of threads (bottom plastic piece): 1-3/8"
6. Length/Height: 2"