The trailer king pin is the weight bearing member of a trailer hitch. It is typically located near the center of the trailer and provides support for the trailer tongue. The king pin weight is the weight of the trailer tongue that is supported by the king pin. This weight is typically between 10 and 20 percent of the total weight of the trailer. The king pin weight can be found in the owner's manual or on the data plate of the trailer.
Broaden your view: Frontier Pin Number
What is the best way to find out the trailer king pin weight?
The best way to find out the trailer king pin weight is to weigh the trailer's axle on a truck scale. This can be accomplished by either driving the trailer onto the scale, or by using a portable axle scale. Once the weight of the trailer's axle is known, the king pin weight can be calculated by subtracting the weight of the trailer's axles from the trailer's total weight.
For another approach, see: How Do You Catch a Cloud and Pin It Down?
Frequently Asked Questions
Can I add a trailer king pin to my towing vehicle?
Trailer king pins are not currently allowed on towing vehicles.
What is the difference between a king pin and tandem trailer?
A king pin is the center of a tractor and trailer tongue. A tandem trailer has two separate trailers that are attached at the king pin
How do you calculate pin weight on a fifth wheel?
To calculate pin weight on a fifth wheel, multiply gross trailer weight (GTW) by .15 to .25.
What is the king pin weight of a tractor?
The king pin weight of a tractor is typically around 34,000 lbs.
What size is the king pin on a 5th wheel trailer?
The king pin on a 5th wheel trailer is 2 inches in diameter.
Sources
- https://www.tulgafifthwheel.com/blogs/news/how-do-i-find-out-the-trailer-kingpin-weight
- https://blogproautomotive.com/what-is-pin-weight-on-a-fifth-wheel/
- https://learntorv.com/towing-pintongue-weight-calculator/
- https://www.etrailer.com/question-192020.html
- https://www.thedieselstop.com/threads/king-pin-weight.155297/
- https://www.rvforum.net/threads/to-much-kingpin-weight-how-do-i-adjust-for-it.85764/
- https://www.eng-tips.com/viewthread.cfm
- https://www.etrailer.com/question-284009.html
- https://changingears.com/weight-calculators/fifth-wheel-towing-weight-calculator/
- https://freedomresidence.com/how-much-do-mobile-homes-weigh/
- https://www.hitchweb.com/blog/post/2012/09/19/what-is-a-trailer-king-pin
- https://www.irv2.com/forums/f44/how-to-figure-out-the-the-true-pin-weight-of-a-fifth-wheel-on-the-back-of-your-truck-407320.html
- https://www.etrailer.com/question-444001.html
- https://www.mygrandrv.com/forum/showthread.php/32912-Estimating-Max-Pin-Weights-on-Momentums
- https://www.mygrandrv.com/forum/showthread.php/10283-Actual-pin-weight-measurements-and-percentage-calculations
- https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/23274926.cfm
- https://www.rvforum.net/threads/question-on-actual-king-pin-weight.80204/
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