4” round king pin coupler

The 4” Round King Pin Coupler is designed for secure attachment between a trailer and its towing vehicle, typically used in heavy-duty applications like flatbed or commercial trailers. The 4” round design provides a precise fit for the king pin, ensuring a tight, stable connection. This coupler allows for easy and secure coupling and uncoupling, offering smooth, reliable towing performance. Built to handle high loads and harsh conditions, it provides durability and enhances towing safety by ensuring the trailer remains securely attached during transport.