Coupling heads with an automatic shutter close the air line the moment the trailer is uncoupled. The shutter prevents pressure loss and keeps road dirt and moisture out of the brake circuit, which makes this type the safer choice on vehicles that are coupled and uncoupled several times a day.

This category lists 5 Büyükdemir references cross-referenced against 48 original equipment numbers. The cross-reference tables cover Volvo and DAF parts.

Most looked-up references in this group: Coupling Heads With Automatic Shutter / Automatischer Kupplungskopf Mit Ventil 5-2300, Palm Coupling with Automatic Shutter / Automatischer Kupplungskopf Mit Ventil 5-2400, Coupling Heads With Automatic Shutter / Automatischer Kupplungskopf Mit Ventil 5-2201, Coupling Heads With Automatic Shutter / Automatischer Kupplungskopf Mit Ventil 5-2200, Palm Coupling With Automatic Shutter, Double Connection, Red Cap 5-2401.

Manufactured by Büyükdemir Otomotiv in Istanbul, a producer of truck and trailer air system parts since 1957.