| Model | Horsepower | Year(s) |
|---|---|---|
| RDEL-16 | 25 | 1954 |
| RDEL-17 | 25 | 1955 |
| RDEL-17C | 25 | |
| RDEL-18 | 30 | 1956 |
| RDEL-19 | 35 | 1957 |
| RDEL-19C | 35 | 1958 |
| RDL-12 | 25 | 1952 |
| RDL-13 | 25 | 1952 |
| RDL-14 | 25 | 1953 |
| RDL-15 | 25 | 1953,1954 |
| RDL-15A | 25 | 1953,1954 |
| RDL-16 | 25 | 1954 |
| RDL-17 | 25 | 1955 |
| RDL-17C | 25 | 1955 |
| RDL-18 | 30 | 1956 |
| RDL-19 | 35 | 1957 |
| RDL-19C | 35 | 1958 |
| RDL-21 | 35 | 1959 |
| RDL-22 | 40 | 1960 |
| RDL-23 | 40 | 1961 |