Glossary of RV Terms

The RV community is just like any other—it has its own set of words, abbreviations, and slang terms. In this glossary we define the common terms and some of the more unusual slang.

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King Pin

The pin by which a fifth wheel trailer attaches to the truck. It slides into the fifth wheel hitch and locks in place.

King Pin Weight

King Pin Weight (also called Pin Weight) is the actual weight pressing down on the fifth wheel hitch by the trailer. The recommended amount of King Pin Weight is 15%-25% of the GTW. For additional details see Understanding RV Weights.

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