2016-2019 BMW 7 Series Seat Belt Buckle 735662504

Also known as

Seat Belt Receptacle

Seatbelt Catch

Safety Belt Buckle

Seat Belt Anchor

Seatbelt Receptacle

SRS Buckle Assembly

What this part does

The seat belt buckle serves as the locking mechanism for the safety belt and connects the restraint system directly to the seat frame or vehicle chassis. In modern vehicles, this component contains an integrated microswitch or Hall effect sensor that communicates with the supplemental restraint system (SRS) to verify that the occupant is buckled. This data determines airbag deployment force and triggers the seat belt warning chime on the instrument cluster. When the switch fails, the vehicle will typically display a persistent airbag or seat belt warning light, even when the latch is fully engaged. Physical failure of the internal springs or latching mechanism will prevent the belt from clicking into place securely.

Fits these vehicles

OEM and interchange numbers

735662504

7356625-04

73 56 6 250 4

Before you order

• Verify your exact part number against 735662504. BMW alters seat belt buckle wiring and internal resistance values based on the specific seat options (such as massage, active bolsters, or comfort seating) installed in the vehicle.
• If your vehicle was involved in a collision, ensure your original issue is not a deployed seat belt pretensioner. Deployed pretensioners pull the buckle downward permanently and require complete replacement.
• Installing a replacement buckle does not typically require module programming, but you will need an OBD2 diagnostic scanner capable of reading SRS systems to clear any stored airbag fault codes before the dashboard warning light will turn off.