| Product Name | Application Model | Version |
|---|---|---|
| Seat belt buckle | BMW IX1 | European version |
| Seat belt buckle | BMW IX3 | European version |
| Seat belt buckle | BMW IX7 | American version |

No, the seat belt buckle of a small car is usually not compatible with those of other models. However, seat belt buckles for trucks, vans, and buses may be interchangeable within similar vehicle models, depending on the specific model requirements.
The presence of a wiring harness on the seat belt buckle depends on the vehicle's configuration and whether the seat is equipped with electronic monitoring functions. In simple terms:
The wiring harness is an integral part of modern automotive electronic safety systems, and its presence or absence directly reflects differences in vehicle safety configurations.