Classic mini alternator information including Model and Outputs
Most Minis used the Lucas 16 ACR and 17 ACR alternators, but there have been others:
| Manufacturer | Model | Output (amps) |
| Lucas | 15 ACR | 28 |
| Lucas | 16 ACR | 34 |
| Lucas | 17 ACR | 36 |
| Lucas | 18 ACR | 43 |
| Lucas | 20 ACR | 66 |
| Lucas | A127 | 45 & 55 |
The A127 alternators fitted to the later SPi Minis are a straight swap for older 1x ACR models.
Lucas A127 alternators have also been fitted to a variety of other ARG cars; some casings are different but the internals are apparently the same. Ratings differ and rise - there is one available rated at 120A for an export version of the Range Rover, but expect to pay around UKP2 for each Amp of output!
There is a Lucas A127 alternator for a 1998 Ford Escort Diesel which is rated at 75A. Aside from possible issues with pulley size and alignment, this is likely to be cheaper than the equivalent Rover/Land Rover/Range Rover alternators, particularly second hand.