Description
BMW F20 N13 GA8HP45Z 6-Speed Automatic Gearbox
The BMW F20 N13 GA8HP45Z is an 8-speed automatic transmission, not a 6-speed. GA8HP45Z is BMW’s designation for the ZF 8HP45-family transmission. It was fitted to various F20 N13 petrol models, including the 116i and 118i.
Key information
| Item | Specification |
|---|---|
| BMW chassis | F20 1 Series |
| Engine | N13 petrol |
| Transmission | GA8HP45Z |
| Actual speeds | 8 forward gears |
| Manufacturer/family | ZF 8HP45 |
| Drive | Rear-wheel drive applications |
| Typical models | 116i, 118i, 120i depending on production date |
| Transmission type | Torque-converter automatic |
| Approx. assembly weight | ~75–81 kg depending on version |
| BMW part numbers | Vary by production date/version |
BMW’s parts catalogue shows different GA8HP45Z versions depending on the F20’s production date. For example, the 118i N13 is listed with 24007636212 / 7636212 for an earlier application, while later versions use different numbers. BMW F20 N13 GA8HP45Z 6-Speed Automatic Gearbox
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