Fifth Wheel Trailer Hitch Pin Box; Rota-Flex ™; King Pin Coupler; 21000 Pound Gross Weight Capacity; Rota-Flex Pin Box; Fits Lippert 1621 Frame Only Rota-Flex™ is a pivoting head pin box that utilizes a proprietary rubber comPound in a compression application to absorb the transfer of fore to aft motion, otherwise known as “chucking.” This innovative design allows the fifth wheel and king pin plate to remain in a horizontal position while the vehicle and trailer pivot independently of each other.
Type: Rota-Flex
Coupler Type: King Pin
Gross Weight Capacity: 21000 Pound
Length: 26-7/16 Inch
Width: 12 Inch
Bolt Pattern: 2 Row
Horizontal Mounting Bolt Spacing: 7-3/4 Inch
Vertical Mounting Bolt Spacing: 2 Inch
Color/ Finish: Black Powder Coated
Material: Steel
With King Pin: Yes
With King Turret: Yes
With King Pin Locking Wedge: Yes
With Turret: No
With Spacers: No