King Pin

Semi Trailer King Pin 50mm/90mm is the core connecting part between tractor and semi-trailer chassis, bearing traction and load during heavy transport. We supply both welded type and bolted assembly type coupling pins, made of high strength alloy steel with good wear resistance and long service life, standard size compatible with most semi-trailer models.

Semi Trailer King Pin: Product Specifications

Product Name: Semi Trailer King Pin
Diameter Size: 50mm (2 Inch) / 90mm (3.5 Inch)
Type: Welded Type, Bolted Assembly Type
Material: High Strength Alloy Steel
Feature: Heavy Duty, Anti-rust, Wear Resistant
Application: Semi Trailer, Cargo Trailer, Stake Trailer, Dump Trailer
Supply: Factory wholesale, large stock available

Semi Trailer King Pin: Product Advantages

Precise dimension standard, perfect matching for semi-trailer chassis.
High load-bearing capacity, suitable for long-distance heavy duty transportation.
Two installation types optional: welded fixed type and bolted removable type for easy replacement.
Direct factory supply from Shandong China, stable quality and competitive price.
Widely exported to Africa, Middle East and Southeast Asia market.
We can provide OEM service according to your requirements.

Semi Trailer King Pin: Quality & Service

All our trailer connection pins go through strict quality inspection and testing before delivery. We ensure each product has stable performance, high precision size and reliable quality, which can effectively avoid safety risks caused by connection failure during transportation. If you need customized specifications or bulk orders, please contact us directly.

Qiming Xinda International Trading Co., Ltd. is a professional manufacturer and exporter of semi trailers and trailer spare parts. We provide one-stop purchasing service for all kinds of trailer accessories and heavy duty transport vehicles.

Our semi trailer king pins are widely used in logistics fleets, construction projects and mining transport. They provide stable connection performance even in harsh road conditions, ensuring the safety and efficiency of your heavy-duty transport operations. All products are manufactured under strict quality control to meet international export standards.

For trailer safety standards, refer to ISO 1726 Trailer Coupling Standards.