Chassis Unlimited Dual Swing Out Rear Bumper Octane CUB960571RAW 2020-2025 GMC Sierra 2500/3500 Raw

Chassis Unlimited Dual Swing Out Rear Bumper for GMC Sierra 2500/3500 (2020–2025) CUB960571RAW – Octane Raw Steel Rear Tire Carrier Strength

When you’re running larger tires, hauling extra gear, or heading out for longer trips, the factory rear bumper can start to feel limited. The Chassis Unlimited bumper from the Octane Series is built to give your 2020–2025 GMC Sierra 2500 or 3500 a tougher and more capable rear-end upgrade. With a durable raw steel build and a dual swing out rear bumper design, this setup gives you the flexibility to carry a full-size spare tire and additional accessories while keeping the truck practical for everyday use.

Fortify Your Sierra with a Swing Out Rear Bumper Built for Real Use

• Full-Size Spare Tire Support – The integrated tire carrier bumper in the back enables you to carry an 8-lug spare tire up to 40 inches, providing your truck with a spare tire for those long road trips.
• Smooth Dual Swing-Out Operation – This swing out rear bumper includes two swing arms that swing out easily and lock in both open and closed positions, providing you with easy bed access when needed.
• Quick Push Button Latch – The cam latch release system provides you with a quick and easy way to open the swing arms when you need to access the bumper.
• Recovery Strength When It Matters – NC-machined 1-inch thick recovery points provide dependable connection points when it’s time to help a friend out of a tough spot or handle a recovery situation.
• Convenient Bed Access Steps – Integrated corner steps and a center step make it easier to climb into the bed, especially helpful when your Sierra sits a little higher with bigger tires.

Why Trust Chassis Unlimited Rear Bumper for GMC Sierra 2500/3500 – Heavy-Duty Rear Tire Carrier Bumper Utility?

The Chassis Unlimited dual swing out rear bumper gives your 2020–2025 GMC Sierra 2500 or 3500 the kind of strength and versatility serious truck owners appreciate. Built from 3/16-inch USA steel and designed with durable hinge components, this rear tire carrier bumper is made to handle larger spare tires, added gear, and the demands of trucks that see real work or long-distance travel.

If you're in the market for a rugged swing out rear bumper that not only provides capabilities for your Sierra but also storage capacity, then this Chassis Unlimited swing out rear bumper is ready for the task. Simply install it on your vehicle, attach your spare tire, and away you go. Shop with us now!

Aftermarket Bumper Tips

Always do your homework before you buy a bumper! Below you can find everything you need to know about bumpers’ weight, thickness, selection, and more. To help your decision, we’ve compiled a full list of all the bumpers we carry. Compare them by look, function, and price.

Everyone wants to know about the weight of steel bumpers and we’re here to help you out. In this blog, you can find every answer to any question you could have about it.

What’s the right thickness for a bumper? Find out with our guide to bumper thickness.

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Once we confirm that your order is eligible for our price match guarantee, you can be confident that you're getting the very best deal online.

Whether you're looking for heavy-duty truck bumpers by Ranch Hand, a winch bumper by Fab Fours, or any other aftermarket truck bumper, if you shop with BumperOnly, you'll never have to worry about buyer's remorse.

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