Towing Equipment› Hitches

Popup Industries, Inc.

KINGPIN TO GN ADJ. ADAPTER FITS FAB

$778.90

SKU: P01P RVGC-4255A

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The RVGC Gooseneck Coupler is a one-piece unit designed to convert a 5th wheel camper for gooseneck towing without needing an adapter. It installs by unbolting the existing king pin box and mounting the RVGC in the same bolt holes. The coupler has a 24,000 lb gross trailer weight rating and a 6,500 lb tongue weight rating. An adjustable version (RVGC-A) offers up to 7 inches of adjustment (4" at coupler, up to 7" total with trailer manufacturer's adjustable hole patterns). Fitment depends on the specific bolt hole configuration of the existing pin box. Made in America.
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KINGPIN TO GN ADJ. ADAPTER FITS FAB

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandPopup Industries, Inc.
Part NumberP01P RVGC-4255A

Videos

RV adapters video from PopUp towing

RV adapters video from PopUp towing
MrTruck review Popup hitch trailer accessories, gooseneck cushion coupler, shortbed truck gooseneck

MrTruck review Popup hitch trailer accessories, gooseneck cushion coupler, shortbed truck gooseneck

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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