- Heavy-duty construction
| 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 | |
| 1965-1969 | Harley-Davidson | Electra Glide FLFB | |
| 1970-1978 | Harley-Davidson | Electra Glide FLH | |
| 1965-1969 | Harley-Davidson | Electra Glide FLHB | |
| 1970-1972 | Harley-Davidson | Electra Glide FLHF | |
| 1965-1969 | Harley-Davidson | Electra Glide FLHFB | |
| 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 | |
| 1977-1978 | Harley-Davidson | Low Rider FXS | |
| 1978 | Harley-Davidson | Roadster XLS | |
| 1977-1978 | Harley-Davidson | Sportster 1000 Cafe Racer XLCR | |
| 1977-1978 | Harley-Davidson | Sportster 1000 Touring XLT | |
| 1972-1978 | Harley-Davidson | Sportster 1000 XLCH | |
| 1972-1978 | Harley-Davidson | Sportster 1000 XLH | |
| 1970-1971 | Harley-Davidson | Sportster 883 XLCH | |
| 1957-1959 | Harley-Davidson | Sportster XL | |
| 1958-1959 | Harley-Davidson | Sportster XLC | |
| 1958-1959 | Harley-Davidson | Sportster XLCH | |
| 1960-1969 | Harley-Davidson | Sportster XLCH55 | |
| 1958-1971 | Harley-Davidson | Sportster XLH | |
| 1958-1964 | Harley-Davidson | Sportster XLRTT | |
| 1974-1978 | Harley-Davidson | Super Glide Electric Start FXE | |
| 1971-1978 | Harley-Davidson | Super Glide FX | |