Superlift K166 2017-2022 Ford F250/F350 Super Duty 4WD 4" 4-Link Kit Diesel with SL Shocks

Superlift K166 2017-2022 Ford F250/F350 Super Duty 4WD 4" 4-Link Kit Diesel with SL Shocks

Regular price $1,879.99
$1,879.99 Sale price Regular price $2,443.98

Lift: 4 in.

What's included:

  • * Coil springs
  • * Superide or Bilstein shocks
  • * Track bar bracket
  • * Bump stop spacers
  • * 4-link system
  • * Steering stabilizer relocation bracket
  • * Brake line relocation bracket
  • * Fabricated lift blocks
  • * Brake line relocation bracket
  • * Superide or Bilstein shocks
  • * U-bolts and hardware


  • If equipped with a 2-piece rear drive shaft, a carrier bearing spacer is required.(Part # 9649)
  • If equipped with factory top mount overload leaf springs, longer u-bolts are required.(Part # 11724)
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    Product Details

    Superlift 4" 4-Link Kit Diesel K166


    • Replacement Front coil springs improve ride quality while rear blocks maintain load capacity
    • Replacement Heavy-Duty Tubular 4-LINK arms with Reflex bushings
    • Track bar relocation bracket prevents stud bind and steering wheel kick
    • Front and Rear – Superlift Shocks | Bilstein® 5100 Series Shocks | Fox® Performance Series 2.0 IFP Shocks | KING Shocks (K166KG)
    • Backed by our limited lifetime warranty
    • Retains OEM caster and camber alignment specifications
    • Maintains ride quality and handling characteristics
    • Designed using Original Equipment (OE) CAD data for accuracy.


    This 4" lift designed for the 2017-2021 Ford Super Duty F-250 | F-350 4WD showcases Superlift's precision-engineered, heavy-duty tubular 4-LINK arms. These arms not only provide your vehicle with a distinct custom appearance but also ensure a straightforward installation process. The robust 4-LINK arms are equipped with press-fit REFLEX bushings, known for their exceptional vibration dampening properties, flexibility, and outstanding durability.

    The 4-LINK design in this 4" lift serves to enhance the suspension control and tire longevity for F-250 and F-350 models by minimizing caster changes throughout the suspension cycle. Additionally, the lift kit incorporates specialized front coil springs tailored for diesel engines. It also integrates a newly designed track bar relocation bracket, crucial for maintaining precise steering geometry and track bar phasing.

    In this 4-inch lift kit for Ford F-250 and F-350, the rear lift is accomplished through a newly designed fabricated rear block, enabling the removal of the stock block. This fabricated block not only facilitates correct pinion and axle angles but also reduces axle wrap. To complement your lifted F-250 | F-350, a diverse range of top-quality shocks is available for this kit, including options from Superlift, Bilstein 5100 Series, Fox Performance Series 2.0 IFP Shocks, and King Shocks (K166KG).

    Price Guarantee

    Lowest Price Guarantee

    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 This applies even to the prices from our own store at
    • 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.


        Installation Guide
        SUPERLIFT comes complete with installation instruction. If you need assistance, call SUPERLIFT 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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