WARN Manual Locking Hubs for 19-Spline Axles, Chrome Pair — Zinc-Aluminum Dial & Dual Seals

WARN 20990 Premium Manual Locking Hubs are a pair of all‑metal, 19‑spline internal mount hubs with a zinc‑aluminum alloy dial, dual seals and wave spring technology for reliable manual 4WD engagement.

Built to OEM standards, these WARN hubs replace factory manual hubs or upgrade older units with a robust, long‑lasting design. The all‑metal construction and wave spring improve durability and functional life compared with standard coil spring designs, while the zinc‑aluminum dial and dual sealing system help keep water and contaminants out. This product ships as a pair and includes mounting hardware for straightforward installation on compatible 19‑spline axles.

How do these hubs improve reliability over standard manual hubs?

Reliability comes from three practical improvements: a full metal build, wave spring retention, and enhanced sealing. Together these reduce wear, maintain consistent engagement force, and protect internal components from grit and moisture.

• All‑metal housing and internals resist deformation under load.
• Wave spring replaces coil springs to sustain pressure and reduce fatigue.
• Dual seals plus zinc‑aluminum dial keep contaminants away from moving parts.

What vehicles and axle types are compatible with the WARN 20990 hubs?

These hubs are designed specifically for axles with 19 splines and internal mount hub locations. They fit many light trucks and SUVs that use 19‑spline manual hubs, but fitment depends on axle and vehicle year — always verify before purchase.

• Specifically made for 19‑spline axle shafts.
• Internal mount configuration for hub locations that accept internal hubs.
• Check vehicle service manual or parts lookup for model‑year compatibility.

How does the 9/10‑turn dial and chrome finish affect use and longevity?

The 9/10‑turn dial gives a solid, positive engagement and makes it easy to switch between locked and unlocked positions without overtravel. Chrome plating offers corrosion resistance and provides a clean, durable appearance in off‑road and road environments.

• 9/10‑turn engagement minimizes ambiguous positions and ensures full lock.
• Chrome finish resists rust and eases cleaning after off‑road use.
• Zinc‑aluminum alloy dial balances strength with corrosion protection.

What comes in the kit and what should I expect during installation?

The package contains a matched pair of manual locking hubs, plus the necessary mounting hardware for direct replacement in compatible applications. Installation is mechanical and typically requires basic tools, wheel removal, and adherence to torque specifications; professional installation is recommended if you are not comfortable with axle service.

• Two internal mount manual locking hubs (left and right pair).
• Mounting bolts and hardware included for straightforward replacement.
• Installation notes: remove wheel and hub assembly, replace with WARN hubs, torque to manufacturer specs.

Who is this for: The WARN 20990 Premium Manual Locking Hub pair is aimed at owners of 19‑spline axled trucks and SUVs who want a durable replacement or upgrade from factory manual hubs. It suits off‑road enthusiasts, heavy‑use owners, and anyone seeking improved contamination resistance and longer service life from their manual locking hubs. If you need OEM‑quality performance and a kit that includes hardware and clear mechanical engagement, these hubs are a practical choice.