2020-2025
2015-2019
2007-2014
2001-2006
Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Chassis Unlimited Octane Series Dual Swing Rear Bumper; Pre-Drilled for Backup Sensors; Black Textured (20-25 Sierra 3500 HD)Find parts that fit my vehicle
Item SHG27383
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9 Reviews
Our Price
$2,999.99 each
Ship to: 43215
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$299.00
Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Heavy-Duty Rear Bumper
- Raw Uncoated Metallic Finish
- Stand-Out Bumper Upgrade
- Provides Extra Loading Options
- Easier Jerry Can Carriage
- Handles 40-Inch Tire Sizes
- Dual Swing-Out Structure
- Heavy-Grade Plate Steel
- Limited 1-Year Warranty
- Basic Installation
- Fits All 2020-2025 Sierra 3500 HD Models
| Brand | Chassis Unlimited |
| Bumper Type | Full Width |
| Bumper Material | Steel |
| Bumper Finish | Black |
| Bumper Winch Mount | No Winch Mount |
| Bumper Fog Light Fitment | Aftermarket |
| Bumper Location | Rear |
Description
Stand-Out Bumper Upgrade. Not only does the Chassis Unlimited Octane Series Dual Swing Rear Bumper; Pre-Drilled for Backup Sensors; Black Textured excel in functionality, but it also stands out with its striking aesthetics. The sleek yet robust design adds a touch of boldness to your vehicle, making a statement wherever your journey takes you. Plus, its dual swing-out tire carrier allows for effortless access to your spare tire, giving you the freedom to quickly change tires when the need arises.
Installation. This product is easy to install and should take about 2 hours.
Warranty. There is a limited 1-year warranty on this product.
Application. The Chassis Unlimited Octane Series Dual Swing Rear Bumper; Pre-Drilled for Backup Sensors; Black Textured fits all 2020-2025 Sierra 3500 HD models.
Fitment:
- 2020 GMC Sierra 3500
- 2021 GMC Sierra 3500
- 2022 GMC Sierra 3500
- 2023 GMC Sierra 3500
- 2024 GMC Sierra 3500
- 2025 GMC Sierra 3500
Chassis Unlimited CUB960572
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Rear Bumper
- Tire Carrier Assembly
- Mounting Hardware
4.8
Customer Reviews (9)
Nov 4, 2024
Review shared from Chassis Unlimited Octane Series Rear Bumper; Not Pre-Drilled for Backup Sensors; Black Textured (15-20 Colorado)
2019 ZR2 - TheAuzTex
Installation Time: Weekend
Great Bumper, but needs some design review
The bumper is heavy duty and looks nice. One very irritating issue though... When installing the brackets for the bumper, found that the slots punched were too small. I had to ream the slots out to allow the factory stock bolts to fit through and bolt to frame. This issue added a couple of hours of installation time. plus a trip to the hardware stock to purchase reaming bits that fit drill to open up the slots. Once this was done, installation moved along better. Also wish that Chassis Unlimited supplied some photos in instructions to help identify the proper steps.
Fit 3/5
Appearance 4/5
Quality 4/5
Bang For Your Buck 4/5
Oct 22, 2024
Review shared from Chassis Unlimited Octane Series Rear Bumper; Not Pre-Drilled for Backup Sensors; Black Textured (15-20 Canyon)
2016 - Randman
Installation Time: Afternoon
Nice looking bumper.
This bumper is tuff, well built and nice looking. Made of sturdy materials ready to assemble and install on your rig. The welds are layed well and the textured coating adds to the look.
Fit 4/5
Appearance 5/5
Quality 5/5
Bang For Your Buck 0/5
Mar 4, 2024
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (19-24 RAM 1500, Excluding TRX)
2019 Laramie - idahoworktruck
Installation Time: Afternoon
very nice fit
fits nicely around the oe moulding, hope it lasts with all the salt they put on roads now in winter
Fit 4/5
Appearance 4/5
Quality 3/5
Bang For Your Buck 4/5
Feb 13, 2024
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Not Pre-Drilled for Front Parking Sensors; Black Textured (09-12 RAM 1500)
2012 Sport - Stakes
Installation Cost: 299
Installation Time: Shop Install
Great Bumper
Its a great bumper. Gives the truck a beefy look. Cant wait t install lights and WInch Kit on it
Fit 5/5
Appearance 5/5
Quality 5/5
Bang For Your Buck 5/5
Aug 8, 2023
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (14-15 Silverado 1500)
2014 - Austin2595
Installation Time: Weekend
Great Bumper
I have had this bumper installed for a few months now. I like the look and it is really well made. A 12,000 lb winch makes for tight fit.
Fit 4/5
Appearance 5/5
Quality 5/5
Bang For Your Buck 3/5
Apr 17, 2023
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (19-24 RAM 1500, Excluding TRX)
CodyESmith
Installation Time: Afternoon
Chassis Unlimited Octane front bumper
Over all I am pleased with this bumper. The craftsmanship is exceptional and quality is outstanding. The fit is lightly adjustable allowing for minor up and down and side to side movement. This allows the installer to tailor the bumper how they want it, high and tight to the grill, or left about 3/4” lower if they choose. The one thing I would change if I were to do this install over to make it a lot easier would be to cut the holes between the outer wings and center section larger. Currently, the holes are about 3-3.5” diameter making it very difficult to get your hand through it to install the nuts and bolts. There is plenty of material to open that hole up another inch. Other than that, everything went smoothly and took about 2.5 hours to install in my driveway. I opted to make some brackets to mount the factory fog lights as they fill the opening nicely and allow you to use the factory wiring. You will need to trim the mounts on the fog light to do this, but it’s a simple fix. Great product, solid bumper and simple install.
Fit 5/5
Appearance 5/5
Quality 5/5
Bang For Your Buck 5/5
Nov 25, 2022
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (16-18 Silverado 1500)
William98
Installation Time: Afternoon
Best looking bumper around!
Looks great on the truck haven’t found any issues with it! Definitely recommend a friend to help you put it on!
Fit 4/5
Appearance 5/5
Quality 4/5
Bang For Your Buck 4/5
Nov 1, 2022
Review shared from Chassis Unlimited Octane Series Rear Bumper; Pre-Drilled for Backup Sensors; Black Textured (14-18 Silverado 1500)
2016 - Antennaa
Installation Time: Less than 1 Hour
5 Inch Antenna
Really good product ! Get good reception from the antenna and haven’t had a problem!
Fit 5/5
Appearance 5/5
Quality 5/5
Bang For Your Buck 5/5
Oct 30, 2022
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Not Pre-Drilled for Front Parking Sensors; Black Textured (19-21 Silverado 1500)
2020 LT - EaseOfUse
Installation Time: Afternoon
Easy Shopping
This website is easy to shop for your specific vehicle parts. Just select what truck you have and the search will show what parts will or will not fit your vehicle. Shipping was free and fast. And the product came not damaged. Great Shopping experience.
Fit 5/5
Appearance 5/5
Quality 4/5
Bang For Your Buck 4/5
Reviews of Chassis Unlimited Exterior products have an average rating of 4.8 out of 5
Feb 4, 2025
Review shared from Chassis Unlimited Prolite Winch Front Bumper; Black Textured (20-23 Silverado 2500 HD)
2022 LTZ - Dubbs105
Surprisingly good!
Solid bumper, good powder coating. Very symmetrical. Put it on a 2022 Silverado HD with a Duramax. You have to completely disassemble your original bumper and cut off some tabs used to hold the old plastic lower grill in. You'll also need to relocate the lower shutters if you have them. Expect to do some various plastic trimming behind the lower shutters for the winch to fit. An Apex 12K fits right into the space in front of the radiator without having to relocate the control box. Have a friend or an engine lift because with a winch and light installed, it is HEAVY. If you've never taken the face off your truck, expect to spend about 8 hours pulling everything apart and getting it all trimmed up. Loose fit your original bumper first, then put the ProLite in place. There are plenty of YouTube videos for taking the old bumper off. Once it's all back together and you start throwing P05AE codes, you'll probably need to replace the lower shutter unit.
Nov 4, 2024
Review shared from Chassis Unlimited Octane Series Rear Bumper; Not Pre-Drilled for Backup Sensors; Black Textured (15-20 Colorado)
2019 ZR2 - TheAuzTex
Great Bumper, but needs some design review
The bumper is heavy duty and looks nice. One very irritating issue though... When installing the brackets for the bumper, found that the slots punched were too small. I had to ream the slots out to allow the factory stock bolts to fit through and bolt to frame. This issue added a couple of hours of installation time. plus a trip to the hardware stock to purchase reaming bits that fit drill to open up the slots. Once this was done, installation moved along better. Also wish that Chassis Unlimited supplied some photos in instructions to help identify the proper steps.
Oct 22, 2024
Review shared from Chassis Unlimited Octane Series Rear Bumper; Not Pre-Drilled for Backup Sensors; Black Textured (15-20 Canyon)
2016 - Randman
Nice looking bumper.
This bumper is tuff, well built and nice looking. Made of sturdy materials ready to assemble and install on your rig. The welds are layed well and the textured coating adds to the look.
May 9, 2024
Review shared from Chassis Unlimited Prolite Winch Front Bumper; Black Textured (19-21 Sierra 1500)
LJJ
Prolite bumper
Used the suggested shop by American Truck. Couldn’t be happier with the shop and the bumper. Looks like a factory upgrade. This thing is a tank.
Mar 4, 2024
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (19-24 RAM 1500, Excluding TRX)
2019 Laramie - idahoworktruck
very nice fit
fits nicely around the oe moulding, hope it lasts with all the salt they put on roads now in winter
Feb 13, 2024
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Not Pre-Drilled for Front Parking Sensors; Black Textured (09-12 RAM 1500)
2012 Sport - Stakes
Great Bumper
Its a great bumper. Gives the truck a beefy look. Cant wait t install lights and WInch Kit on it
Aug 8, 2023
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (14-15 Silverado 1500)
2014 - Austin2595
Great Bumper
I have had this bumper installed for a few months now. I like the look and it is really well made. A 12,000 lb winch makes for tight fit.
Apr 17, 2023
Review shared from Chassis Unlimited Octane Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (19-24 RAM 1500, Excluding TRX)
CodyESmith
Chassis Unlimited Octane front bumper
Over all I am pleased with this bumper. The craftsmanship is exceptional and quality is outstanding. The fit is lightly adjustable allowing for minor up and down and side to side movement. This allows the installer to tailor the bumper how they want it, high and tight to the grill, or left about 3/4” lower if they choose. The one thing I would change if I were to do this install over to make it a lot easier would be to cut the holes between the outer wings and center section larger. Currently, the holes are about 3-3.5” diameter making it very difficult to get your hand through it to install the nuts and bolts. There is plenty of material to open that hole up another inch. Other than that, everything went smoothly and took about 2.5 hours to install in my driveway. I opted to make some brackets to mount the factory fog lights as they fill the opening nicely and allow you to use the factory wiring. You will need to trim the mounts on the fog light to do this, but it’s a simple fix. Great product, solid bumper and simple install.
Feb 23, 2023
Review shared from Chassis Unlimited Attitude Series Winch Front Bumper; Not Pre-Drilled for Front Parking Sensors; Black Textured (13-18 RAM 1500, Excluding Rebel)
2016 SLT - SickJoePick
My Extreme Chassis Attitude bumper is a bully
Just got back from Big Bend NP and thrashed my truck around the toughest roads. The bumper has the guts to hold up under harsh conditions. I would recommend lock washers and blue locktite on all connections as there was serious vibration and jostling going on. Needed more gap between fenders and bumper edges as the frame flex hammered the bumper against the fenders (it quit, self corrected over 120 miles of hammering!)
Feb 6, 2023
Review shared from Chassis Unlimited Attitude Series Winch Front Bumper; Pre-Drilled for Front Parking Sensors; Black Textured (19-24 RAM 2500)
2021 Big Horn - Renz
Awesome Upgrade
This bumper gives my truck a super aggressive look. Very nice craftsmanship in the design and overall aesthetics of the bumper. It does come in the pieces nicely packaged for shipping. I am not overly happy with the powered coating, the first tap and it chipped away. I may have to add more coating to in later. This about 3 to 4 wrenches on the installation side. I used a YouTube video to remove my old bumper, which seemed simple enough. That is until the wiring harness came into play. The Attitude Bumper did not come with any instructions so if you are not mechanically inclined, please seek professional assistance. Also, this is a two-person job, even with jacks and lifts you will need another set of hands at various points in the installation. Once I was able to get all of the grommets disconnected then it was pretty much a cake walk. Remember to keep up with your factory hardware you will reuse it to install your new Attitude Bumper. I will post some picture of my installation as soon as I can.
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