Series Rear Bumper


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Does Your Factory Bumper Have Parking Sensors?

Bumper Finish

SKU CUB960142

Product Features

  • Factory Parking sensors work excellent with our bumpers, if your stock bumper has parking sensors, please select the parking sensor bumper drop down option.
  • Includes Bolt on spare tire mount for 8X170 Pattern with M14 Studs for up to 40” wheel/tire
  • Dual swing outs W/ 2 position locking
  • Push button cam latch release system
  • Ships fully assembled ready to install
  • Manufactured from 3/16” USA Steel
  • Includes LED License Plate Lights
  • Recessed rear facing mounts for 3” LED Cube lights as back up lights (2)
  • Each side of the bumper has integrated corner steps
  • Includes heavy duty CNC Machined 1” Thick recovery points with a 1” Bore
  • Designed & Manufactured in California
  • Bumpers ships complete with 3-Stage Black Texture powder coat Finish

Product Details

Chassis Unlimited “Octane Series” dual swing-out rear tire carrier bumper ships to your door ready to install on your truck, complete with a 3-Stage texture black powder coat. This is our direct bolt-on version, no cutting is required of your bed. Bumper Ships fully assembled ready to install

The Octane series dual swing-out bumper is our premium rear tire carrier bumper. Double latching swingout with slam bumpers allow a vibration-free swing out and an easy open/close using our push-button latch system. A secondary latch on the swing-out spindle also allows locking in 2 positions- closed and open, so you don’t need to worry about holding your swing-outs open while lowering your tailgate. Universal ½” Slots on both swingouts allow you to mount up to a 40” Spare tire/wheel, and all your favorite accessories. One spare tire mount is included with the purchase of the bumper.

This dual swing-out tire carrier is manufactured with top-of-the-line components ensuring our product will last a lifetime of adventures. USA Premium rated hinge/spindles with billet aluminum caps, rubber bump stops ensuring a slam style close with no vibration, push-button cam style release latches, ½” Pin secondary close and open stop, Includes spare tire mount with studs.

The Octane series bumper brings an entire new style to the bumper market and offers an industry-first low-profile fitment with aggressive styling. The Octane series rear bumper is designed as a one-piece bumper, and ships as one unit ready to bolt to your vehicle. The rear bumpers also feature corner steps as well as a built-in center step for ease of access. All of Chassis Unlimited’s products are designed & manufactured in Livermore California.

Most installations are completed in a few hours or less with basic hand tools; the bumpers directly bolt onto your vehicle. Remove your factory bumper/mounts, and our product directly bolts onto your vehicle’s factory bumper mounting locations.

This bumper is designed to work with your factory tow hitch.

Swing out Bumper will work with Superduty F250 & F350 2017-2022 Models

New & Improved


As of November 1st 2023: All of our Octane Series rear bumpers are designed as 3 Piece bumpers for Improved strength and durability. Our New 3Pc Designs allow us to create extreme strength with the shell of the bumper by using internal bracing. This allow allows us to create an extremely strong mounting joint location to your vehicles frame(3/8" THICK).

Bumper profiles remain the same, However all bumpers shipped will be improved 3-Piece designs.

Images May show Single Shell Bumpers. 

Low profile

Aggressive designs

No More Bulky Bumpers! The Octane series rear bumpers bring an entire new style to the bumper market and offer an industry first low-profile fitment with aggressive styling. Designed to be Low-Profile, the Octane series is extremely strong bumper, as well as a tight contour of the vehicle. Rear bumpers are designed to work with your factory tow hitch & tow plug.

All rear bumpers include LED License plate lights.

includes our premium

black texture powdercoat

All of our bumpers include our premium Black Texture Powder Coat. This high quality 3-Stage durable finish is a great option for just about any truck color. We take pride in our manufacturing and finishing process, ensuring you receive a high quality product that's guaranteed to set your truck apart! 

We don't offer color matching, however we do offer a RAW steel option if your looking to have your bumper color matched to your truck. This must be done by your local paint/powder shop.

Products in the Wild

Prop 65

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov