- 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 |
| 1957-1959 | Harley-Davidson | Sportster XL | |
| 1958 | Harley-Davidson | Sportster XLC | |
| 1958-1959 | Harley-Davidson | Sportster XLCH | |
| 1960-1964 | Harley-Davidson | Sportster XLCH55 | |
| 1958-1964 | Harley-Davidson | Sportster XLH | |