Trailer Parts & Accessories

PopUp GN7 Gooseneck Square 4" to 5th Wheel King Pin, 30,000 Lbs Availability: Shipping Required

Convert your Gooseneck to a fifth wheel King Pin

Pull your gooseneck trailer with a semi-tractor or pickup mounted fifth wheel.

Simply replace the coupler with a king pin. Easily switch back and forth.

2″ SAE king pins are the industry standard and are suitable for use in all over-the-road applications.

$269.95

PopUp GN6 Gooseneck Square 4-1/2" to 5th Wheel King Pin, 30,000lbs Availability: Shipping Required

Convert your Gooseneck to a fifth wheel King Pin

Pull your gooseneck trailer with a semi-tractor or pickup mounted fifth wheel.

Simply replace the coupler with a king pin. Easily switch back and forth.

2″ SAE king pins are the industry standard and are suitable for use in all over-the-road applications.

$272.95

BullDog Gooseneck 4" Square Coupler to 5th Wheel King Pin, 2-5/16 Ball, 30,000lbs Availability: Shipping Required

Allows gooseneck trailer to be towed with vehicles equipped with a fifth wheel hitch
Feature dual set bolts
Square model features load bearing pinch bolt

$299.95

PopUp SB6 Gooseneck Square 4-1/2", 9" Off Set to 5th Wheel King Pin, 24,000lbs Availability: Shipping Required

Convert your Gooseneck to a fifth wheel King Pin

Pull your gooseneck trailer with a semi-tractor or pickup mounted fifth wheel.

Simply replace the coupler with a king pin. Easily switch back and forth.

2″ SAE king pins are the industry standard and are suitable for use in all over-the-road applications.

$369.95

PopUp SB7 Gooseneck Square 4", 9" Offset to 5th Wheel King Pin, 24,000lbs Availability: Shipping Required

Convert your Gooseneck to a fifth wheel King Pin w/ 9" Offset

Pull your gooseneck trailer with a semi-tractor or pickup mounted fifth wheel.

Simply replace the coupler with a king pin. Easily switch back and forth.

2″ SAE king pins are the industry standard and are suitable for use in all over-the-road applications.

$369.95