3.5 inch Bolted Kingpin Summary:

1. Kingpins are usually welded to the trailer upper coupler unit and are used to couple a trailer to the fifth wheel.

2. Kingpins come in two standard sizes, 2 – inch and 3.5 – inch. 

        They are manufactured in special alloy steels and usually are welded to the upper coupler assembly.

         Bolted and removable kingpins also are used.

3. A Pintle hook and drawbar assembly is used to couple a full trailer to a truck or lead trailer.

Bolted Kingpin Information:

WONDEE Bolted Kingpin Factory has been supplying the kingpin to international market for 10 years.

1.Size: 3.5" (90#)  

2. Material: Bolted king pin  

3. Max. Capacity: 2000 pcs/month  

4. MOQ:50 Pieces 

5. Lead time: About 10 -15 working days 

6. Payment terms: T/T or L/C at sight 

7. Production ability: 2000 pieces per month 

8. Quality level: excellent quality for international market, made in China, WONDEE brand 

9. Certificate: ISO9001; TS16949; COC; PVOC; CIQ; SONCAP; BV; C/O; FORM  

10 We also like to develop new types according to your special requirement

Our products are popular in the worldwide market, including North American, South American, European, African and Southeast Asian markets.

3.5 inch Bolted Kingpin Dimension:

Fifth Wheel 3.5 inch Bolted Kingpin Detail Photos: