4.5-Inch Lift Kit with N3 Shocks for 2017–2022 Ford Super Duty 4WD — Part 50621
- Fits 2017–2022 Ford F-250 and F-350 Super Duty 4WD diesel — review every exclusion below
- Excludes gas engine, dually, manual shift transfer case, 3.5in rear axle tube, Tremor Factory Trim Package, and 2020 10-speed transmission trucks
- Kit contents: front coil, N3 shock kit, fabricated block and 4.5in U-bolt kit, universal U-bolt kit, front CV drive shaft
- Radius arm drop brackets set proper caster to preserve factory steering feel
- Bolt-on installation; downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Gas engine models
- Manual shift transfer cases Does NOT fit dually models
- Models with 3.5" rear axle tubes Does NOT work on models equipped with Tremor Factory Trim Package Does NOT fit 2020 models with 10-speed transmission
About this kit
4.5-Inch Lift Kit with N3 Shocks, fitment-checked
Rough Country 50621 is a 4.5-inch lift kit for 2017–2022 Ford F-250 and F-350 Super Duty 4WD diesel trucks. The box holds a front coil, an application-valved N3 shock kit, fabricated rear blocks with 4.5in U-bolts, a universal U-bolt kit, and a front CV drive shaft. It does not fit gas engine models, dually models, manual shift transfer cases, trucks with 3.5in rear axle tubes, Tremor Factory Trim Package trucks, or 2020 models with the 10-speed transmission.
This 4.5-inch lift kit for the 2017–2022 Ford Super Duty 4WD covers F-250 and F-350 trims from XL through Limited, including King Ranch, Lariat, Platinum, and XLT. Radius arm drop brackets keep caster set where the factory geometry wants it, and the fabricated rear blocks replace the cast style. The front is raised to sit level with the rear, adding ground clearance in the process. Work through the exclusion list first — gas engines, duallys, manual shift transfer cases, and Tremor trucks are out — then pull the downloadable Rough Country installation guide before you start.
What’s in the box
Kit contents
- 1× Coil 5d 9297
- 1× N3 Shock Kit 155030
- 1× Kit Box 1550BOX1
- 1× Block U-Bolt 4.5in Kit 1550BOX3
- 1× Univ. 3 4 X 4 1 X 1 2in U-Bolt Kit 7673
- 1× CV Drive Shaft 5068.1
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 50621 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 50621 |
| UPC / GTIN | 00843030169640 |
| Lift height | 4.5 in |
| Shock package | N3 series |
| Shipping weight | 236.29 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here