Seat belt buckle arrangement for a vehicle, with a first buckle device and with a second buckle device , wherein the seat belt buckle devices are arranged next to one another or one behind the other and/or contact or can contact each other in certain areas, with a casing , wherein the first belt buckle device comprises a connecting element and is partially encased by the casing and wherein the second belt buckle device has no casing, wherein the casing has a head section for covering areas of a lock head housing of the first belt lock device and a downwardly directed foot section for covering areas of the connection element of the first belt lock device and a cable harness of the first belt lock device , the casing being tapered along its longitudinal extent (L2) towards the foot section . characterized in that a slot is introduced in the foot section , which runs along the longitudinal extension (L2) of the casing , the casing being easily and quickly attached to the first buckle device through the slot . is mountable, wherein each of the belt lock devices comprises a lock head housing with a head-side housing opening , a connection element and a cable harness , the connection element and the cable harness are fastened in the lock head housing and protrude downwards (u) from it, with at least the connecting element and the cable harness of the first belt lock device being outside of the corresponding lock head housing are connected to each other in a connecting section , the connecting section having a lower end (E), the casing extending from the lower end (E) of the connecting section to the Lock head housing of the first buckle device . with a first buckle device and with a second buckle device , wherein the seat belt buckle devices are arranged next to one another or one behind the other and/or contact or can contact each other in certain areas, with a casing , wherein the first belt buckle device comprises a connecting element and is partially encased by the casing and wherein the second belt buckle device has no casing, wherein the casing has a head section for covering areas of a lock head housing of the first belt lock device and a downwardly directed foot section for covering areas of the connection element of the first belt lock device and a cable harness of the first belt lock device , the casing being tapered along its longitudinal extent (L2) towards the foot section . characterized in that a slot is introduced in the foot section , which runs along the longitudinal extension (L2) of the casing , the casing being easily and quickly attached to the first buckle device through the slot . is mountable, wherein each of the belt lock devices comprises a lock head housing with a head-side housing opening , a connection element and a cable harness , the connection element and the cable harness are fastened in the lock head housing and protrude downwards (u) from it, with at least the connecting element and the cable harness of the first belt lock device being outside of the corresponding lock head housing are connected to each other in a connecting section , the connecting section having a lower end (E), the casing extending from the lower end (E) of the connecting section to the Lock head housing of the first buckle device . <EOS>