Trucks: B-B Cast frame
Engine: Cooper-Bessemer FDL-6T, 600 hp
Gear ratio: 105:15
Maximum speed: 55 mph
Operating weight (lbs.): 142,100
Tractive effort: 23,000
Length: 37′ – 0″
Order no.: 93297-TA
| Road no. | Class | Build date | Builder’s no. | Former road nos. | Renumbered to | Renumber date |
| 1526 | ER-6a | May 50 | 30624 | 7818, 7800 | 26 | 1956 |
| 1527 | ER-6a | May 50 | 30625 | 7819, 7801 | 27 | 1956 |
| 1528 | ER-6a | Mar 50 | 30608 | 7802 | 28 | 1956 |
| 1529 | ER-6a | Mar 50 | 30609 | 7803 | 29 | 1956 |
| 1530 | ER-6a | 1950 | 30610 | 7804 | 30 | 1956 |
| 1531 | ER-6a | 1950 | 30611 | 7805 | 31 | 1956 |
| 1532 | ER-6a | 1950 | 30612 | 7806 | 32 | 1956 |
| 1533 | ER-6a | Apr 50 | 30613 | 7807 | 33 | 1956 |
| 1534 | ER-6a | Apr 50 | 30614 | 7808 | 34 | 1956 |
| 1535 | ER-6a | Apr 50 | 30615 | 7809 | 35 | 1956 |
| 1536 | ER-6a | Apr 50 | 30616 | 7810 | 36 | 1956 |
| 1537 | ER-6a | 1950 | 30617 | 7811 | 37 | 1956 |
| 1538 | ER-6a | 1950 | 30618 | 7812 | 38 | 1956 |
| 1539 | ER-6a | 1950 | 30619 | 7813 | 39 | 1956 |
| 1540 | ER-6a | 1950 | 30620 | 7814 | 40 | 1956 |
| 1541 | ER-6a | 1950 | 30621 | 7815 | 41 | 1956 |
| 1542 | ER-6a | 1950 | 30622 | 7816 | 42 | 1956 |
| 1543 | ER-6a | May 50 | 30623 | 7817 | 43 | 1956 |