Suspension and Components› Suspension Kits

Zone Offroad

2017-19 F250/350 4IN SUSPENSION SYS

$1,124.00

SKU: Z007 ZONF86

Out of Stock
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

This Zone Offroad ZONF86 4-inch suspension lift kit is engineered specifically for 2017-2019 Ford F-250 and F-350 Super Duty 4WD Diesel trucks. The system includes full-length replacement coil springs designed to optimize on-road and off-road performance for the heavy diesel Super Duty. To maintain proper suspension geometry, radius arm drop brackets are used to correct caster positioning. Steering correction is achieved with a forged drop pitman arm and a heavy-duty 1/4" fabricated steel track bar drop bracket to recenter the front end and synchronize steering linkage angles. Additional front components include sway bar relocation brackets, brake line drop brackets, bump stop extensions, and new steering stabilizer mounts for a Zone nitro single stabilizer cylinder. For the rear, a replacement block lifts and levels the truck, eliminating the need for stacked blocks while maintaining factory leaf springs and towing capacity. A 5" fabricated block with an integrated bump stop wing is secured with extended black e-coated u-bolts. Due to variations in factory 2-leaf or 3-leaf main springs with overloads, Zone offers multiple rear box kits with u-bolts to accommodate specific setups. This kit is designed to increase vehicle height and allow for larger tire fitment, with trimming potentially required for 37x12.5" tires.
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2017-19 F250/350 4IN SUSPENSION SYS

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandZone Offroad
Part NumberZ007 ZONF86

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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