Trojan Hub Kit 5x4.5 SS Disc Braked 1500kg for Duratorque and NZ Beam Axle Trailers Reliable Braking

Upgrade your trailer braking with the Hub Kit 5X41/2X1/2 SS Disc Braked 1500kg — a robust, disc-braked hub solution engineered for Duratorque and beam axles, and broadly compatible with NZ-made trailer axles. Built for reliability and long service life, this kit delivers confident stopping power for demanding loads and tougher environments.

Why this hub kit stands out

• Disc-braked performance: full cast disc or bolt-on disc options in cast iron or stainless steel provide strong, responsive braking with reduced heat build‑up compared to drum-only hubs.
• Versatile compatibility: designed to fit Duratorque and beam axles, with a wide range of NZ-manufactured trailer axles in mind. A practical upgrade for older trailers or new builds seeking superior braking performance.
• Common wheel patterns accounted for: the design includes the most frequently stocked 5-stud configurations (4 1/4" and 4 1/2" PCD options) to match your rims and tyres without custom parts.

Load rating and practical use

Each hub kit carries a 1500kg GVM rating per axle (based on a single axle with a pair of hubs). This makes it an excellent choice for mid-to-heavy-duty trailers where reliable braking under load matters—spot on for utility trailers, horse floats, caravans, and light commercial trailers operating in varied terrain and weather.

Variants, dimensions, and what’s in the kit

The hub kits come in several configurations to suit your rotor diameter and mounting preferences. All share a common wall of durability, with key dimensional data as follows:

• Outer bore: 45 mm; Inner bore: 59 mm
• Flange thickness: 15 mm (standard models) or 12 mm (spigot type)
• Flange diameter: 180 mm (standard) or 155 mm (spigot type)
• Boss length: 27–34 mm (standard), 38 mm (spigot type)
• Rotor diameter: 225 mm (standard) with spigot-type options offering 225 mm or 260 mm rotor compatibility
• Stud pattern: 5 studs; common patterns include 4 1/4" and 4 1/2" PCD (108.0 mm and 114.3 mm respectively), plus 120 mm PCD variants

Part numbers and rotor sets

Choose the exact hub construction you need, from integral hubs to bolt-on discs in cast iron or stainless steel:

• Integral hubs: T035105 (Blank), T035115 (4 1/4" pattern, 108.0 mm PCD), T035120 (4 1/2" pattern, 114.3 mm PCD), T035125 (5 on 4 1/4" pattern, 63.449 mm), T035135 (5 on 4 1/2" pattern, 67.183 mm), T035140 (5 on 120 mm pattern, 70.535 mm)
• Cast iron bolt-on: T036125 (5 on 4 1/4" pattern, 63.449 mm), T036135 (5 on 4 1/2" pattern, 67.183 mm), T036140 (5 on 120 mm pattern, 70.535 mm)
• Stainless steel bolt-on: T036325 (5 on 4 1/4" pattern, 63.449 mm), T036335 (5 on 4 1/2" pattern, 67.183 mm), T036340 (5 on 120 mm pattern, 63.449 mm)

Rotor sets for these hubs are available as TPT3110 (Cast iron) or TPT3111 (Stainless Steel). Each kit is packed as a 15 kg unit and ships with the appropriate rotor set to match your chosen hub type.

What you get and how it helps you

• Improved braking performance and heat management for trailers carrying heavier loads or frequent stop/start cycles.
• Longer life in corrosive environments with stainless steel disc options, ideal for coastal or salted-road use.
• Flexibility to match your wheel pattern and rotor size, reducing the need for custom machining or adapters.
• Ready-to-install components with clear part numbers and rotor sets, backed by a practical 4–7 day shipping window from suppliers.

Who this is for

Ideal for trailer builders and owners upgrading from drum or drum-braked hubs, especially those using Duratorque or beam axles and NZ-manufactured trailers. If you’re seeking predictable braking, compatibility with common wheel patterns, and options for stainless or cast iron discs, this hub kit is engineered to fit your project.

Practical tips for installation and maintenance

Confirm your wheel stud pattern and rotor diameter before ordering. If you’re choosing a spigot-type configuration, note the 155 mm flange and longer boss length to ensure proper alignment with your spindle and drum-free braking setup. When ordering, pairing the hub kit with the matching rotor set (TPT3110 or TPT3111) ensures a seamless install and reliable performance out on the road.

Note: There is a range of spare parts available for this product. Products are shipped from suppliers and typically dispatch within 4–7 days.