| Engine | | X 20 XEV, Y 22 XE, Z 22 XE |
| Bosch Alternator | | |
| Characteristic Data | | |
| Opel Cat. No. | | 12 04 108 |
| Bosch code number | | 0 123 120 001 |
| Test data | | |
| Rated voltage | V | 14 |
| Maximum generated current | A | 70 |
| Current generated | | |
| at 1600 rpm | A | >= 33 |
| at 6000 rpm | A | >= 70 |
| Regulated voltage | V | 14.5 1) |
| Slip rings | | |
| Minimum diameter | mm | >= 14.5 |
| Carbon brushes | | |
| Projection | mm | >= 5 |
| Excitation winding | | |
| Resistance | Ohms | 2.1 ± 5% |
| Torque | | |
| Housing bolts | Nm | 5 |
| Toothed belt pulley nut | Nm | 65 |
| Engine | | X 20 XEV, Y 22 XE, Z 22 XE |
| Bosch Alternator | | |
| Characteristic Data | | |
| Opel Cat. No. | | 12 04 145 |
| Bosch code number | | 0 123 505 002 |
| Test data | | |
| Rated voltage | V | 14 |
| Maximum generated current | A | 100 |
| Current generated | | |
| at 1600 rpm | A | >= 42 |
| at 6000 rpm | A | >= 100 |
| Regulated voltage | V | 14.5 1) |
| Slip rings | | |
| Minimum diameter | mm | >= 14.5 |
| Carbon brushes | | |
| Projection | mm | >= 5 |
| Excitation winding | | |
| Resistance | Ohms | 2.6 |
| Torque | | |
| Housing bolts | Nm | 5 |
| Toothed belt pulley nut | Nm | 65 |
| Engine | | X 20 XEV, Y 22 XE, Z 22 XE |
| Bosch Alternator | | |
| Characteristic Data | | |
| Opel Cat. No. | | 62 04 063 |
| Bosch code number | | 0 123 510 063 |
| Test data | | |
| Rated voltage | V | 14 |
| Maximum generated current | A | 120 |
| Current generated | | |
| at 1600 rpm | A | >= 50 |
| at 6000 rpm | A | >= 120 |
| Regulated voltage | V | 14.5 1) |
| Slip rings | | |
| Minimum diameter | mm | >= 14.5 |
| Carbon brushes | | |
| Projection | mm | >= 5 |
| Excitation winding | | |
| Resistance | Ohms | 2.0 |
| Torque | | |
| Housing bolts | Nm | 5 |
| Toothed belt pulley nut | Nm | 65 |
| Engine | | X 20 XEV |
| Delco-Remy Alternator | | |
| Characteristic Data | | |
| Opel Cat. No. | | 62 04 008 |
| Delco-Remy code number | | 10 479 947 |
| Test data | | |
| Rated voltage | V | 14 |
| Maximum generated current | A | 70 |
| Current generated | | |
| at 1600 rpm | A | 26 |
| at 6000 rpm | A | 70 |
| Regulated voltage | V | 14.7 ± 0.5 1) |
| Slip rings | | |
| Minimum diameter | mm | >= 14 |
| Carbon brushes | | |
| Minimum length | mm | >= 20 |
| Excitation winding | | |
| Resistance | Ohms | 2.5 |
| Torque | | |
| Housing bolts | Nm | 9.5 |
| Toothed belt pulley nut | Nm | 80 |
| Engine | | X 20 XEV, Y 22 XE, Z 22 XE |
| Delco-Remy Alternator | | |
| Characteristic Data | | |
| Opel Cat. No. | | 62 04 002 |
| Delco-Remy code number | | 10 479 923 |
| Test data | | |
| Rated voltage | V | 14 |
| Maximum generated current | A | 100 |
| Current generated | | |
| at 1600 rpm | A | 35 |
| at 6000 rpm | A | 100 |
| Regulated voltage | V | 14.7 ± 0.5 1) |
| Slip rings | | |
| Minimum diameter | mm | >= 14 |
| Carbon brushes | | |
| Minimum length | mm | >= 20 |
| Excitation winding | | |
| Resistance | Ohms | 1.7 |
| Torque | | |
| Housing bolts | Nm | 9.5 |
| Toothed belt pulley nut | Nm | 80 |
) Regulator voltage must be attained at 4000 rpm and within one minute.