Chassis Unlimited Octane Front Steel Bumper CUB900572RAW 2020-2023 GMC Sierra 2500/3500 Raw, Sensor Cutouts

Chassis Unlimited Steel Bumper for GMC Sierra 2500/3500 (2020-2023) CUB900572RAW – Raw Strength with Trail-Ready Precision

If you like your truck tough and your upgrades done your own way, this steel bumper is a solid starting point. Built for 2020–2023 GMC Sierra 2500/3500 trucks, the raw Octane Series front bumper gives you serious strength without locking you into a finished look. Paint it, coat it, or leave it raw—it’s your call. Factory parking sensors stay right where they belong, working just like stock, so you don’t lose daily usability while dialing in off-road protection.

Strengthen Your Front End with Octane-Grade Design of GMC Sierra Aftermarket Bumpers!

• Tight, Low-Profile Fitment – A modular 3-piece design hugs the Sierra’s front end for better clearance and a clean, aggressive stance.
• Lighting Freedom Built In – Run a 30” light bar or eight center cube lights—both mounting options come ready to go.
• Wing-Mounted Visibility – Four outer cube light mounts help light up trails, work sites, or dark back roads.
• Recovery-Ready Steel – Thick, CNC-machined recovery points are designed for heavy pulls, not just parking lot appearances.
• Easy Install – Mounts directly to existing factory mounting locations without any cutting, grinding, or welding.

Why Pick the Chassis Unlimited Octane Bumper – GMC Sierra Steel Bumper Built to Last?

This GMC Sierra steel bumper is made for drivers who want control over the final finish without compromising strength. Backed by Chassis Unlimited craftsmanship and built from heavy U.S. steel, it’s a foundation you can trust whether the truck’s a workhorse, trail rig, or both.

If you’re shopping GMC Sierra aftermarket bumpers that deliver real capability and customization freedom, this Octane steel bumper is ready when you are. Shop with us now!

Offroad 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.