| Model Code | Description | |
|---|---|---|
| 01 | 309.500, 309.BIS, 309.559, 309.700, 309.BIS, 309.787, 309.800, 309.BIS, 309.843, 310.500, 310.510, 310.700, 310.710 | 12V;DRIVER'S SEAT |
| 02 | 309.500, 309.BIS, 309.559, 309.700, 309.BIS, 309.787, 309.800, 309.BIS, 309.843, 310.500, 310.510, 310.700, 310.710 | 24V;DRIVER'S SEAT |