Universal Center Mounting Plate | Bed & Roof Racks

Mount accessories anywhere — even in those awkward spots. The Universal Center Mounting Adapter Plate gives you a solid mounting point on any T-slot crossbar, perfect for the in-between places where standard brackets won’t reach. It works on bed racks and roof racks built from 10-series or 15-series aluminum extrusion, so one plate solves a wide range of mounting problems. CNC-machined from the same strong aluminum as our exclusive corner brackets, it’s a versatile addition to your bed rack accessories.

It comes with everything you need — rack-mounting hardware plus accessory-mounting screws in both common thread sizes — so you can bolt down your gear right out of the box.

Why the Universal Center Mounting Plate

• Mount in awkward spots — a centered mounting point wherever you need one on a crossbar.
• Bed racks & roof racks — works on 10-series and 15-series T-slot extrusion.
• CNC-machined aluminum — same strong alloy as our corner brackets.
• Dual thread sizes — accessory mounting threads in both 5/16-18 and 1/4-20.
• Complete kit — rack hardware and accessory screws both included.

Choose your size

• 1.0" x 1.0" — for 10-series T-slot extrusion. Most commonly used as crossbars on roof racks (XTR, Prinsu, Sherpa, RCI, and more).
• 1.5" x 1.5" — for 15-series T-slot extrusion. Same pattern as XTR1 & XTR3 bed racks.

Not sure which extrusion your rack uses? Email us before ordering.

What’s included

• 1 — Universal Center Mounting Adapter Plate (1.0"x1.0" or 1.5"x1.5")
• Rack-mounting hardware: 4 drop-in T-nuts, 4 button-head screws
• Accessory-mounting hardware: 4 button-head screws (two 1/4-20 x 1/2" & two 5/16-18 x 1/2")

Build out your bed rack

The adapter plate works on any XTR1 bed rack or XTR3 bed rack (15-series) and most roof rack crossbars (10-series). Pair it with XTR Modular MOLLE Plates for gear, an XTR Rotopax Adapter Plate for fuel and water, and XTR Quick Fist Riser Mounts for tools.

Resources & support

• Install reference video: XTR rack & accessory assembly
• Fitment questions: FAQ or email support@xtrusiondesigns.com

Pictures may show accessories sold separately. Prinsu, Sherpa, and RCI are trademarks of their respective owners.