DETYI WA15 5050 Fifth Wheel Kingpin 2″ & 1/2″ Bolster Plate

The DETYI WA15 5050 fifth‑wheel kingpin is engineered as a direct, one‑piece replacement for the original WA15 5050 unit. Its forged high‑strength steel construction provides a permanent welded attachment to the trailer chassis, delivering superior stability and durability compared with conventional bolted connections. This design ensures a secure, high‑strength bond that resists deformation and fatigue, extending service life and reducing maintenance costs.

Designed for broad compatibility, the kingpin matches major OEM part numbers such as Dayton 11‑0212, Batco 11‑200, r 13101, Standard 20BWPM698, and 20SIR700. Its compact, robust profile tolerates intense torsional forces and uneven terrain, making it ideal for heavy‑duty applications including grain trailers and industrial equipment. Installation is straightforward—simply remove the old pin and weld the new unit in place, minimizing downtime and getting your trailer back on the road quickly.