Fab Tech K1121M Chevy Silverado 2500HD/3500HD 2011-2018 4" Performance System with Stealth Shocks

Fab Tech K1121M Chevy Silverado 2500HD/3500HD 2011-2018 4" Performance System with Stealth Shocks

Regular price $2,249.51
$2,249.51 Sale price Regular price $2,924.36

Lift: 4 in.

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Product Details

Fab Tech 4" Performance System K1121M


  • Heavy Duty 1/4″ Thick, High Arched Crossmember
  • Front Differential Skid Plate
  • Ductile Iron Steering Knuckles
  • Rear Block & U-bolt Kit


Fabtech's 4" Performance systems make use of their well-established heavy-duty construction and design elements to deliver a robust suspension enhancement. This 4" system includes high-arched lower control arm crossmembers crafted from sturdy 1/4" thick steel for maximum durability. The Fabtech ductile iron steering knuckles maintain a nearly stock track width, ensuring that the tires stay neatly under the fenders for an aesthetically pleasing look. To achieve the desired rear lift, the system utilizes a block and U-bolt configuration.

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  • 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.
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  • 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.

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      Installation Guide
      FAB TECH comes complete with installation instruction. If you need assistance, call FAB TECH Products Technical Support or bring it to your local auto body shop to install.

      Please click here to download installation manual.

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