Ultra Fab 35946203 Trailair Kingpin Box 21k Air-Ride Pin Box

Item Number
Ultra Fab
MFG. Part No
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Item Description

Fifth Wheel Trailer Hitch Pin Box; Trailair®; King Pin Coupler; 21000 Pound Gross Vehicle Weight Capacity; Air-Ride Pin Box;

Coupler TypeKing Pin
Gross Weight Capacity21000 Pound
Length41.763 Inch
Width12 Inch
Bolt Pattern2 Row
Horizontal Mounting Bolt Spacing7-7/8 Inch
Vertical Mounting Bolt Spacing2 Inch
Color/ FinishBlack
With King PinYes
With TurretNo
With SpacersNo
  • Air Ride Pin Box Acts As A Buffer, Arresting The Transfer Of Road Impact Between The Tow Vehicle And The Coach
  • Produces Smooth, Stabilized Towing Performance
  • Scissors Action, Transfers Shock To The Air Bag
  • Improves The Overall Ride While Protecting The 5th Wheel Trailer
  • Improves Handling And Enhances Towing Performance
  • Limited 1 Year Warranty