Duomatic couplings join both brake lines, supply and control, in a single connector. One movement couples the trailer, which removes the risk of crossing the two lines that separate palm couplings allow.

This category lists 6 Büyükdemir references cross-referenced against 33 original equipment numbers. The cross-reference tables cover Scania, Volvo, DAF, MAN, Renault and Iveco parts.

Most looked-up references in this group: Duomatic Coupling 5-2711, Duomatic Coupling 5-2700, Duomatic Coupling 5-2710, Duomatic Coupling 5-2712, Duomatic Coupling 5-2702.

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