Engine: 16-567D, 1,800 hp
Gear ratio: 62:15
Maximum speed: 65 mph
Operating weight (lbs.): 246,240
Tractive effort (lbs): 45,000
Length: 56‘ – 2″
Order: 5612
| Road no. | Class | Build date | Builder’s no. | Retired | Notes / disposition |
| 4700 | GR-18a | Feb 60 | 25732 | May 13 96 | To Railtex for use on L’Orignal Railway, to Cape Breton & Central Nova Scotia CBNS No. 4700 1996 |
| 4701 | GR-18a | Feb 60 | 25733 | Mar 10 97 | To Caulfield Ltd, to RELCO No. 1622 |
| 4702 | GR-18a | Feb 60 | 25734 | Feb 23 98 | To Western Rail Dismantlers, to CLN Industries (Charny QC), to South Central Florida SCFE No. 9021 (painted orange with wide blue stripe), off roster by 2022 |
| 4703 | GR-18a | Feb 60 | 25735 | May 13 96 | To Adrian & Blissfield 1996, to Railink No. 1807 |
| 4704 | GR-18a | Feb 60 | 25736 | Jun 3 96 | To Adrian & Blissfield 1996, to Railserve (assigned to Kellogg’s Battle Creek MI, then The Andersons Metamora MI) |
| 4705 | GR-18a | Feb 60 | 25737 | Dec 30 71 | Wrecked in head-on collision Pontiac MI Sep 71, to Precision National Corporation No. 4705, to Illinois Central 8390, to Illinois Central Gulf 8016, to Archer-Daniels-Midland No. 8016 (Clinton IA) |
| 4706 | GR-18a | 1960 | 25738 | Jan 26 98 | To Southern Marine Equipment (Greenville MS), to CLN Industries (Charny QC) |
| 4707 | GR-18a | Mar 60 | 25739M | Feb 23 98 | To Western Rail Dismantlers, to CLN Industries (Charny QC), to South Central Florida SCFE No. 9122 (painted orange with wide blue stripe), off roster by 2022 |