Superlift 6 in. Lift Front Component Box (Passenger-Side Knuckle) for GMC Sierra (2019-2022)
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Warranty Information
Vendor warranty summary
Superlift Warranty
At a glance: Limited lifetime on select Superlift products for the original buyer while they own the vehicle; other items carry limited three-year or one-year terms.
This is Superlift's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: November 4, 2026.
Coverage by product line
| Superlift product | Coverage |
|---|---|
| Select Superlift-branded products (lifetime tier) | Limited lifetime, for as long as the original retail buyer owns the vehicle |
| Superlift products designated three-year | Limited three-year tier (terms not published in the page text; confirm for the specific part) |
| Superlift products designated one-year | Limited one-year tier (terms not published in the page text; confirm for the specific part) |
What's covered
- Defects in materials or workmanship on select Superlift-branded products installed per the provided instructions
- Coverage for the original retail buyer for as long as they own the vehicle the product was installed on
What's not covered
- Alteration, modification or failure to maintain the product
- Normal wear, such as bushings and rod ends
- Finish defects, including scratches, powder coat and plating
- Effects on the vehicle's electronic stability system or other vehicle systems
- Racing or competition use, accidents, and rock, tree or other environmental impacts
- Theft, vandalism or intentional damage
- Products from Superlift's subsidiaries (lifetime tier)
- Parts moved to another vehicle, or after the vehicle changes owners
- Returns of non-defective products after installation
How to make a Superlift warranty claim
- Return the product to the place of purchase or submit a claim through RealTruck's Superlift warranty page.
- Include the order number, your name, address, phone and email, vehicle year, make and model, the product name or part number and a description of the issue.
- Attach a copy of the original receipt and photos of the product.
- Do not ship anything back without prior authorization; unauthorized returns may be refused or returned at your cost.
Superlift contact: Superlift (RealTruck): 877-216-5446; contact form at https://realtruck.com/contact-brands/contact-superlift/ · Warranty page
Bought it from NVMOS? Start with us.
Superlift's first route for a claim is the place of purchase, and it wants the order number, original receipt and photos. Contact NVMOS first and we will confirm which warranty tier your part falls under, assemble the claim and get the return authorized for you. Have your order number and a few photos of the issue ready, then call or text us at (920) 249-7744 or send us a message.
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Disclaimer: The information on this page describes Superlift's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Sources: Superlift warranty policy (RealTruck, official) and Superlift brand page (RealTruck, official) and Superlift warranty summary (JEGS help center, secondary; older terms with a legacy phone number). Last updated on nvmos.com: November 4, 2026. See our return policy for NVMOS's own terms.
About the brand
Superlift is a suspension brand within RealTruck that builds lift kits, leveling kits, shocks and steering stabilizers for Jeeps, trucks and SUVs. At NVMOS we carry Superlift kits and shocks for the full-size and midsize trucks, Jeeps and Toyotas we support.
Lead time: In-stock parts ship in 1-3 business days; parts stocked at the manufacturer take about 1-2 weeks.
Shop all 618 SuperliftWarrantyAll brands
Warranty terms are set by Superlift, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Superlift 6 in. Lift Front Component Box (Passenger-Side Knuckle) for GMC Sierra (2019-2022)
This is one component box from the Superlift 6 in. lift kit for the GMC Sierra (2019-2022). It holds the passenger-side steering knuckle. It suits installers who need to complete a kit or replace a box that went missing.
| Spec | Detail |
|---|---|
| Fitment | GMC Sierra (2019-2022) |
| Lift height | 6 in. |
| Position | Front |
| Contents | Passenger-Side steering knuckle |
| Drivetrain | 4WD |
| Part number | 3591 |
| Weight | 37.7 lb |
This box is one part of a multi-box Superlift kit, so confirm your kit part number and which box you need before ordering. Not sure it fits your build? Call or text us at (920) 249-7744 with your year, trim and setup and we will confirm it.
Is this a complete lift kit?
No. It is one component box. Other boxes are needed for a complete Superlift lift.
Which vehicles does it fit?
It fits the GMC Sierra (2019-2022).
What is in the box?
It contains the passenger-side steering knuckle.
What is the warranty?
See our Superlift warranty page for the current terms.
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Specifications
Superlift 6 in. Lift Front Component Box (Passenger-Side Knuckle) for GMC Sierra (2019-2022) FAQs
Is this a complete lift kit?
No. It is one component box. Other boxes are needed for a complete Superlift lift.
Which vehicles does it fit?
It fits the GMC Sierra (2019-2022).
What is in the box?
It contains the passenger-side steering knuckle.
What is the warranty?
See our Superlift warranty page for the current terms.
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