This item ONLY Works with early models of King Pin Brackets
King Pin Small Stubby Pull Ring Plunger is used on early King Pin Brackets to lock the bracket to their corresponding base plate. Made of Stainless Steel.
Most King Pin brackets will have the KPSPRP, check outside diameter thread size prior to ordering to be sure you have the correct part.
KPSPRP-S Outside diameter of threads .244in
KPSPRP Outside diameter of threads .428in