- Feature the unique concept of a built-in regulator and a simple two-wire hookup
- Regulators have variable amperage output, producing more amps when cold for faster charging
- All parts are interchangeable with OEM (except end cap/regulator)
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1958-1964 | Harley-Davidson | Duo Glide FL | |
| 1958-1964 | Harley-Davidson | Duo Glide FLF | |
| 1958-1964 | Harley-Davidson | Duo Glide FLH | |
| 1958-1964 | Harley-Davidson | Duo Glide FLHF | |
| 1936-1937 | Harley-Davidson | E V Twin 61 | |
| 1941-1950 | Harley-Davidson | E V Twin 61 | |
| 1936-1952 | Harley-Davidson | EL V Twin 61 | |
| 1941-1950 | Harley-Davidson | F V Twin 74 | |
| 1941-1948 | Harley-Davidson | FL V Twin 74 | |
| 1949-1957 | Harley-Davidson | Hydra Glide FL | |
| 1953-1957 | Harley-Davidson | Hydra Glide FLF | |
| 1955-1957 | Harley-Davidson | Hydra Glide FLH | |
| 1955-1957 | Harley-Davidson | Hydra Glide FLHF | |
| 1978-1984 | Harley-Davidson | Roadster XLS | |
| 1977-1978 | Harley-Davidson | Sportster 1000 Touring XLT | |
| 1975-1979 | Harley-Davidson | Sportster 1000 XLCH | |
| 1975-1984 | Harley-Davidson | Sportster 1000 XLH | |
| 1984 | Harley-Davidson | XLX 61 | |