PROTECHNIC főfékhenger
#PRH3150- Anyag: Öntöttvas
- Hengerfurat : 19,05 mm
- Menetméret: M10x1
| ALFA ROMEO ARNA (920_) 1.2 (920.AA) | 1985-01 - 1986-12 | 44kW / 60HP |
| ALFA ROMEO ARNA (920_) 1.2 (920.AB, 920.AC) | 1985-01 - 1986-12 | 50kW / 68HP |
| ALFA ROMEO ARNA (920_) 1.3 TI (920.A1B) | 1983-03 - 1986-12 | 63kW / 86HP |