LUXTRKSTO Trailer Idler Hub Kit 2-Set 5×4.5" 4.5" Bolt Pattern — 3,500 lb, Galvanized & Pre-Greased

LUXTRKSTO 2Sets 5-Bolt 4.5" idler hub kits are pre-greased, hot-dip galvanized replacement hubs designed for 3,500 lb round trailer axles (1-1/16" to 1-3/8"), supplied with bearings, seals and hardware for quick installation.

These hub assemblies are built to replace worn or damaged idler hubs on trailers that use a 5 on 4-1/2" bolt pattern and round spindles. Each kit arrives pre-lubricated with NLGI2 grease and pre-installed bearings and seals to reduce prep time. The hubs are hot-dip galvanized for enhanced corrosion resistance, and the package contains every fastening part you need to complete two hub installs.

How do these hubs fit my trailer spindle and wheel bolt pattern?

The LUXTRKSTO idler hubs are engineered for trailers with a 5 on 4-1/2" bolt circle and round axles between 1-1/16" and 1-3/8" diameter. They are not compatible with spindles that have a D-shape or a groove cut into them. Confirm your axle diameter and bolt pattern before ordering to ensure correct fitment.

• Bolt pattern: 5 on 4-1/2" (5x4.5")
• Axle compatibility: 1-1/16" to 1-3/8" round spindles
• Capacity: 3,500 lb per axle (sized for #84 3500 lb hubs)
• Not suitable for D-shaped or grooved spindles

What comes in each 2-set kit and what parts are preinstalled?

Each package contains a complete set for two idler hubs and includes bearings, seals, lug nuts and the small hardware needed to mount and secure the hubs. Bearings and grease seals are factory-installed, which minimizes assembly steps and reduces the need for specialized tools at installation.

• 2 idler hubs and 2 dust caps
• 2 outer bearings (L44649) and 2 inner bearings (L68149)
• 2 grease seals, 2 shaft nuts, 2 shaft washers, 2 cotter pins
• 10 lug nuts, 2 rubber plugs, and pre-lubricated grease inside hubs

Why choose hot-dip galvanized and pre-greased hubs for trailer use?

Hot-dip galvanizing provides a durable zinc coating that resists rust and corrosion better than painted finishes, making these hubs suited to wet, coastal or road-salt environments. Pre-lubrication with NLGI2 grease and factory-installed bearings and seals save installation time and reduce the chance of contamination or lubrication mistakes.

• Hot-dip galvanizing for long-lasting corrosion protection
• NLGI2 grease offers high adhesion and water resistance
• Factory-installed bearings and seals cut installation time
• NBR double-lip seals reduce the risk of grease leakage

Who is this for: These LUXTRKSTO idler hub kits are intended for trailer owners, repair shops and fleet managers who need a fast, reliable replacement for 3,500 lb axles with a 5 on 4-1/2" bolt pattern and round spindles. They’re ideal when you want corrosion-resistant hubs that arrive ready to install, complete with bearings, grease seals and all required hardware. Avoid purchasing if your trailer uses D-shaped or grooved spindles; otherwise these kits provide a time-saving, durable option for restoring wheel assemblies.