Address: 22895 County Line Rd, Shell Knob, MO 65747     Phone: 620-432-6079      Email:

Gooseneck & 5th wheel Towing products High volume low price leader

5th Wheel King Pin Extender

Fifth Wheel Hitch Extender

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5th Wheel King Pin Extender

Product Information:

The extended kingpin RV5 adds 10 inches, and the RV55 adds 5 inches of new clearance between your truck and 5th wheel trailer for shorter turns in a strong easy to install accessory. The RV5 adds 3-1/2” of height and the RV55 adds 3-3/4” height to your kingpin box setup. An extra ten inches between the rear bumper and the bulkhead of the trailer makes things easier especially if you’re towing with a short bed truck! In most cases the RV5 eliminates the need for a slider or other more expensive options. 


Both products have a 24,000 lbs. Gross Trailer Weight rating, and have a long lasting black powder coated finish. All but a few kingpin boxes allow for the 10 inch extension. Some are made with the kingpin plate going so far back on a level plane that a 10 inch extension will not work and can hit the inside of your pickup bed sides and that is where the RV55 with a 5 inch extension may work. (See below for a detailed image.)



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