Unique Seatbelt Buckle

[MG1217]

Can anyone tell me what this kind of seatbelt buckle is? I have a 2019 Lincoln Navigator and this kind of buckle is part of the second row seatbelts. The dealership has no idea, so I'm assuming they were some kind of aftermarket seatbelts installed by the previous owner (we bought the car used).... I need to extend this seatbelt receptacle to allow my daughter to buckle herself cross body in a booster but I can't find any extensions for this buckle because I have no idea what it is called. Any ideas or help would be greatly appreciated!

Seatbelt Photo

 

[SafeDad]

Can anyone tell me what this kind of seatbelt buckle is? I have a 2019 Lincoln Navigator and this kind of buckle is part of the second row seatbelts. The dealership has no idea, so I'm assuming they were some kind of aftermarket seatbelts installed by the previous owner (we bought the car used).... I need to extend this seatbelt receptacle to allow my daughter to buckle herself cross body in a booster but I can't find any extensions for this buckle because I have no idea what it is called. Any ideas or help would be greatly appreciated!

Seatbelt Photo

This appears to be a standard OEM Ford buckle for its inflatable seatbelt system that is standard on some Ford/Lincoln vehicles. Inflatable seatbelts have some restrictions for child passengers, so please double check your vehicle and child safety seat manual to verify they can be used. Boosters should generally be OK, but there are always exceptions.

Installing a Carseat with Inflatable Seat Belts - CarSeatSite

Inflatable seat belts provide great safety benefits to booster-age kids and adults, but not all carseats can be installed with them. Learn how they work and how to install your carseat using an inflatable seat belt.

carseatsite.com

Seatbelt extenders are generally not allowed for use with child safety seats of any kind. You would definitely want to check the manuals and contact the manufacturer of the booster before doing so.