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Rough Country Part # 50859

Rough Country - 6 Inch Lift Kit - Diesel - 4 Link - D/S - C/O Vertex - Ford F-250/F-350 Super Duty (17-22) - 50859

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Canadian since 2005Mississauga, Ontario

Superior ride quality

Give your fourth-generation Ford Super Duty an impressive upgrade and incredible ride quality with Rough Country's 4-Link Coilover Conversion Lift Kit. This must-have kit is the pinnacle of suspension upgrades. Providing ride height adjustability, increased dampening, and killer good looks.

You're sure to set yourself apart from the pack. This innovative kit allows you to replace your factory arms with a 4-Link setup, using Rough Country's durable, fixed upper arms and adjustable lower control arms. A set of radius arm drop brackets maintain proper geometry and allow for proper caster setting, which is crucial to maintaining factory handling.

Durable components

Rough Country's 6 in 4-Link Coilover Conversion Lift Kit features top-mounted reservoir brackets and coil-over mounts constructed from 1/4-inch steel. Utilizing this conversion kit you're removing the factory independent coil shock and coil set-up and replacing it with a massive 2.5in piston, nitrogen-charged, 8-stage adjustable Vertex Coilover. Rough Country's Vertex Coilovers feature a monotube design with an external reservoir for increased oil capacity and damping sensitivity.

When it comes to investing in a high-end kit, you'll be pleased to find that Rough Country's 2.5in piston design is beefier and offers an impressive 56 percent greater fluid capacity than the average reservoir shock. Each kit is paired with a monotube shock that provides optimal damping control.

Installation. Requiring cutting and drilling to install, an estimated timeframe of 6-10 hours is recommended to complete this full installation. This full kit can be installed at home and can be completed efficiently and quickly.

Limited lifetime replacement warranty

Rough Country's 4-Link Coilover Conversion Lift Kit is backed with a limited lifetime replacement warranty towards manufacturer defects. As such, the product is protected from structural and workmanship damage after the date of purchase. With our industry-leading warranty give yourself peace of mind when using Rough Country's Suspension products.

  • Easy bolt-on installation.

  • Increased ground clearance.

  • Levels the front with the rear of the vehicle.

  • Radius arm drop brackets allow for properly set caster. Proper caster is crucial to maintaining factory handling and driveability.

  • Fabricated blocks are stronger and offer a longer lifespan than cast blocks.

  • Specially designed anti-axle wrap rear blocks maintain stock ride quality while eliminating common lift block problems.

Lift height 6 in
Location Top
Fuel type Diesel/Gas
Warranty Limited lifetime
Country of origin Thailand
Package weight 341 lb
Part number 50859

  • 2017-2022 Ford F-250 Super Duty
  • 2017-2022 Ford F-350 Super Duty

Models equipped with a 10-speed transmission must remove dial pin. Does NOT fit gas engine models. Does NOT fit manual shift transfer cases Does NOT fit dually models. New fabricated lift block replaces the factory equipped lift block. Does NOT work on models equipped with Tremor Factory Trim Package.

Free Canadian shipping on qualifying orders $399+, with no duties or brokerage. Special order and made-to-order items can't be cancelled or refunded once ordered. Oversized items may carry a handling fee depending on your location; pickup in Mississauga has no fee.

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