4-Inch Component Box for Jeep Wrangler Unlimited (2018-2022)

About this part

4-Inch Component Box, fitment-checked

The 4 in. component box for the non-Rubicon Wrangler Unlimited, and the widest year range of the 4 in. boxes at 2018-2022. Dual rate long travel coils, track bar and brake line brackets, bump stop spacers, cam bolts and sway bar end links are included.

Of Skyjacker's 4 in. JL boxes this is the one that reaches furthest back, covering 2018 through 2022 where the closely related part numbers open later. Trims are 80th Anniversary, Freedom and High Altitude on the Unlimited. The box carries dual rate long travel coil springs, front and rear track bar brackets, brake line brackets, bump stop spacers, cam bolts and sway bar end links. At 85.3 lb boxed it is a component box rather than a full system — pair it with shocks rated for the height.