- Contain all necessary hardware to bolt together stock motor cases
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1941-1947 | Harley-Davidson | E V Twin 61 | |
| 1940-1947 | Harley-Davidson | EL V Twin 61 | |
| 1941-1947 | Harley-Davidson | F V Twin 74 | |
| 1941-1947 | Harley-Davidson | FL V Twin 74 | |