Exterior Components› Body Panels and Components

Hidden Hitch

MULTI-PLUG T-CONNECTOR ASSEMBLY 7-

$68.80

SKU: H03O 8551000

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Demco 8551000 is an underbed rail kit designed for Demco's UMS 5th-wheel and gooseneck trailer hitches. It allows for a clear truck bed when not towing, as the rails mount beneath the surface with only four flush mounting points.

Installation is simplified with no-drill frame brackets that bolt to the outside of the frame rails. The crossmembers sit along the top of the frame under the bed for a solid connection. This system is constructed from sturdy, black powder-coated steel for durability and resistance to corrosion. The kit includes rails and all necessary installation hardware, and it is backed by a 5-year limited warranty.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandHidden Hitch
Part NumberH03O 8551000

Buy with Confidence

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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