Petrol engines
| Model Power | Displacement | Cylinder | Camshaft drive system Timing belt or chain |
|---|---|
| Alfa Giulietta 1.4 TB 16V 77 kW / 103 hp / 105 PS | 1368 cc | 4 | timing belt |
| Alfa Giulietta 1.4 TB 16V 88 kW / 118 hp / 120 PS | 1368 cc | 4 | timing belt |
| Alfa Giulietta 1.4 TB 16V MultiAir 110 kW / 148 hp / 150 PS | 1368 cc | 4 | timing belt |
| Alfa Giulietta 1.4 TB 16V MultiAir 125 kW / 168 hp / 170 PS | 1368 cc | 4 | timing belt |
| Alfa Giulietta 1.8 TBi 16V 173 kW / 231 hp / 235 PS | 1742 cc | 4 | timing belt |
| Alfa Giulietta 1.8 TBi 16V QV 177 kW / 237 hp / 240 PS | 1742 cc | 4 | timing belt |
Diesel engines
| Model Power | Displacement | Cylinder | Camshaft drive system Timing belt or chain |
|---|---|
| Alfa Giulietta 1.6 JTDM 16V 77 kW / 103 hp / 105 PS | 1598 cc | 4 | timing belt |
| Alfa Giulietta 1.6 JTDM 16V 88 kW / 118 hp / 120 PS | 1598 cc | 4 | timing belt |
| Alfa Giulietta 2.0 JTDM 16V 103 kW / 138 hp / 140 PS | 1956 cc | 4 | timing belt |
| Alfa Giulietta 2.0 JTDM 16V (2013 – 2015) 110 kW / 148 hp / 150 PS | 1956 cc | 4 | timing belt |
| Alfa Giulietta 2.0 JTDM 16V (2015-) 110 kW / 148 hp / 150 PS | 1956 cc | 4 | timing belt |
| Alfa Giulietta 2.0 JTDM 16V 125 kW / 168 hp / 170 PS | 1956 cc | 4 | timing belt |
| Alfa Giulietta 2.0 JTDM 16V TCT 125 kW / 168 hp / 170 PS | 1956 cc | 4 | timing belt |
| Alfa Giulietta 2.0 JTDM 16V TCT 129 kW / 173 hp / 175 PS | 1956 cc | 4 | timing belt |
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