WC WF WD Engine Casting Numbers Reference
| Serial Numbers: | |||
| Location: On rear below left brake cover | |||
| 1948 WD | 7 to 9249 | ||
| 1949 WD | 9250 to 35444 | ||
| 1950 WD | 35445 to 72327 | ||
| 1951 WD | 72328 to 105181 | ||
| 1952 WD | 105182 to 131242 | ||
| 1953 WD | 131243 to 146606 | ||
| Comments: | |||
| Serial number break in 1952 at 126931 jumping to 127007 when transmission changed to constant mesh | |||
| Price for a dual front wheel WD in 1947 $1,685, this rose to $2,060 in 1951 | |||
| WD | |
| 1948 | 9243 |
| 1949 | 26195 |
| 1950 | 36883 |
| 1951 | 32854 |
| 1952 | 25986 |
| 1953 | 15364 |
| Total | 146525 |