Locating Replacement King Pin for 45 Degree Pin Box on Trailer

Updated 10/03/2017 | Published 10/02/2017

Question:

I have a 45 degree pin box I cant read what kind it is any more Im looking for a list of pin box extensions to fit my box

asked by: Robert

Expert Reply:

In order to find a replacement king pin that will fit your trailer, you will need to determine the model number for your existing pin box. Since you are unable to read the number stamped onto the unit itself, you still have a couple of options.

First, if you are able to contact the trailer manufacturer with your VIN, they should be able to provide you with the original pin box model number. You can then use this information to select a great replacement.

Another option is to take a few measurements on your current pin box. I have attached an article that explains all the measurements you will need to take. You will first select your pin box style, which appears to be a 45 degree telescoping design, and then take the corresponding measurements as shown in the article and on the attached image. Once you have done this, you can use the chart at the bottom of the article to match these dimensions to the OEM pin box number.

I have included a link that will take you to our available selection of replacement king pins. You can use the facets on the left side of the page to select your pin box number to bring up the compatible replacement options.

expert reply by: Chris R