Sadao-Padang Besar Highway (Highway 4054, ) is a major secondary highway in Songkhla Province of Thailand. The highway also goes to the Malaysia-Thailand border where it becomes Malaysia Federal Route 7.

Junction and town lists The entire route is located in Sadao district, Songkhla province.

KmExitNameDestinationsNotes0+000I/SสะเดาSadao – Bangkok, Pattani, Mueang Songkhla, Hat Yai, Dannok, Sadao Checkpoint, Bukit Kayu Hitam (Malaysia) – Sathon, Na Thawi, Ban Prakob Checkpoint, PattaniT-junctions0+88XSenphongSK.1008 – Hat Yai, DannokJunctions10+4XXPadang BesarLocal Highway – Thong Mo, Hat Yai, Mueang SongkhlaJunctions10+439Padang Besar CheckpointCrossingMalaysia–Thailand borderThrough to

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