| Application | Model Num | Engine S/N Base | Machine S/N First | Machine S/N Last |
|---|---|---|---|---|
| 637E | 637E | 48W19968 | 1FB1659 | |
| Comment: In Frame Overhaul/Front Engine D.I. Engines | ||||
| 637E | 637E | 48W19968 | 1JB1 | - Up |
| Comment: In Frame Overhaul/Front Engine D.I. Engines | ||||
| 657E | 657E | 48W19977 | 86Z1 | - Up |
| Comment: In Frame Overhaul/Rear Engine | ||||
| 631E | 631E | 48W19968 | 1AB11639 | |
| Comment: In Frame Overhaul/Front Engine D.I. Engines | ||||
| 631E | 631E | 48W19968 | 1NB8721389 | |
| Comment: In Frame Overhaul/Front Engine D.I. Engines | ||||