| Class 9020 | |
| Builder: | Alsthom |
| Totalproduction: | 4 |
| Aarwheels: | B-B |
| Uicclass: | B' B' |
| Wheeldiameter: | 9501NaN1 |
| Primemover: | S.A.C.M MGO V 12 ASHR |
| Rpmrange: | 1.500 RPM |
| Enginetype: | 4-stroke Diesel |
| Displacement: | 541NaN1 |
| Generator: | Alsthom CC 830 H 10 |
| Tractionmotors: | Alsthom TA 641 M |
| Cylindersize: | 175x |
| Transmission: | Diesel-Electric |
| Gear Ratio: | 79:14 |
| Multipleworking: | Within class, up to 3 |
| Trainbrakes: | Westinghouse air brake, Vacuum brake |
| Maxspeed: | 701NaN1 |
| Poweroutput Start: | 10501NaN1 |
| Poweroutput Cont: | 10001NaN1 |
| T/E Starting: | 115001NaN1 |
| T/E Continuous: | 106001NaN1 |
| Safety: | VACM dead mans switch |
| Operator: | Comboios de Portugal |
| Operatorclass: | Série 9020 |
| Fleetnumbers: | 9001 - 9004 |
| Locale: | Portugal |
| Firstrundate: | 1975 |
| Disposition: | seven sold to Madarail |
| Notes: | Main reference[1] |
Série 9020 was a class of metre-gauge diesel locomotives built by Alsthom for the Portuguese Railways (CP). They entered service in 1975. By the early years of the 21st century the metre-gauge lines on which they operated (such as the Corgo line and the Tua line) have now almost all been closed, resulting in the withdrawal of the locomotives. After their withdrawal, some of the locomotives were sold to Madarail in Madagascar.