Chassis Unlimited Attitude Aftermarket Back Bumper CUB990571 2020-2025 GMC Sierra 2500/3500 Texture Black Powder Coat

Chassis Unlimited Aftermarket Back Bumper for GMC Sierra 2500/3500 (2020-2025) CUB990571 – Attitude Series Strength with Factory-Clean Fit

If you’re ready to ditch the factory rear end and step up to something that works as hard as your truck does, this aftermarket back bumper from Chassis Unlimited delivers. Designed specifically for 2020–2025 GMC Sierra 2500 and 3500 trucks, the Attitude Series rear bumper brings heavy-duty performance while keeping a factory-tight contour that looks right at home. Built from 3/16” USA steel and finished in a durable texture black powder coat, this bumper gives your Sierra a clean, aggressive upgrade without looking bulky or overdone—just solid, confident muscle where it counts.

Reinforce Your Truck That Is Built to Work, Styled to Stand Out – GMC Sierra Rear Bumper For Sale Features!

• HD Modular Construction – Three-piece design bolted together with ½” Grade 8 hardware for extreme strength and long-term serviceability.
• Integrated Step Access – Corner bed steps and a center step make climbing in and out of the bed easier—no matter the job or terrain.
• Serious Recovery Capability – 1” thick CNC-machined recovery points are ready for real-world pulls, not just show.
• Rear Lighting Ready – Recessed mounts accept two 3” LED cube lights to improve visibility when backing up or working at night.

Why Use the Chassis Unlimited Bumper for GMC Sierra Back Protection?

This GMC Sierra rear bumper is built for truck owners who want more than stock—more strength, more function, and more attitude. With its heavy-duty construction, clean fitment, and smart features, it’s a serious upgrade whether you’re working, towing, or just want your truck to stand out for the right reasons.

If you’re looking for a GMC Sierra rear bumper for sale that blends rugged capability with premium design, the Attitude Series is ready to bolt on and back you up every mile of the way. Shop with us now!

Truck 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.

We work hard to ensure that the prices of our aftermarket truck bumpers are the best available online. That’s why we guarantee that you’ll get the lowest price on all of our bumpers and accessories. Here’s how it works:

• We guarantee that the price of our aftermarket truck bumpers is the best available online. If you find an online store that offers a specific model at a lower price, let us know and we’ll match their price for your purchase.
• If you find that the exact bumper at an even lower price online within 6 months after your purchase, we will refund you the difference. Simply send a price difference refund request to support@bumperonly.com. This applies even to the prices from our own store at BumperOnly.com
• The competitor must be an online retailer with no physical stores and they must be an authorized dealer of the bumpers or accessories in question. The competing online store must also have the product in stock on their website for our price match guarantee to apply.
• The price match guarantee does not apply to online marketplaces such as Amazon, eBay, Overstock or any other similar websites. The competitor must be selling the item directly on their own online store.
• Additional promos cannot be applied in addition to the price match guarantee. For example, the free gift promo cannot be added on top of the price match guarantee. Only one promotion can be applied per purchase.

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.

For any questions about our price match guarantee, feel free to get in touch.

Shop without fear. Let BumperOnly take care of the rest.