SP 4701-4703
These cabless "calf" units were the delivered drawbar-connect with cabbed "cow" units to form what EMD referred to as a TR6 set. The drawbars were quickly replaced with standard couplers. The first set was demonstrator units EMD 1600 and 1600B purchased by the SP.
SP 4700 - 11/1951 - construction number: 13550 - Demonstrator EMD 1600B
| SP 4700 |
SP 4701-4703 - 10/1951 - construction numbers: 15117-15119
| SP 4701 | SP 4702 | SP 4703 |