Trojan Hub Kit 5x4.5 CI Cast Iron Disc Braked 2000kg For Duratorque Beam Axles NZ Trailer

Introducing the Hub Kit 5X41/2X1/2 CI Disc Braked 2000kg — a robust, purpose-built disc-braked hub solution engineered for demanding trailer applications. Designed to fit our Duratorque and beam axles, this kit is also compatible with a wide range of NZ-manufactured trailer axles, making it a versatile choice for builders and operators who demand reliable stopping power and long service life.

Why this hub kit stands out

• High-load capability — rated for 2000 kg Gross Vehicle Mass per axle (based on a pair of hubs), giving you solid performance for heavy trailers, equipment trailers, or caravans.
• Disc braking efficiency — features a 275 mm rotor diameter, integrated or bolt-on disc rotor options, and standard caliper compatibility (calipers sold separately) for strong, reliable stopping power even under demanding conditions.
• Flexible stud patterns — the 5-stud configuration with a 4 1/2 inch PCD aligns with the most commonly stocked rims and tyres, simplifying wheel choices and maintenance.
• Versatile hub architecture — available in configurations to suit both cast iron hubs and spigot-style setups, with variations in bore and flange dimensions to match your axle specifics.
• Ready-to-fit parts ecosystem — a wide range of spare parts is available, making maintenance straightforward and downtime minimal.
• Practical shipping and support — ships from the supplier within 4–7 days, with detailed specifications and support to help you choose the right exact model for your setup.

Technical specifications at a glance

• Model — Hub Kit 5X41/2X1/2 CI Disc Braked 2000kg
• Hub type — Disc Braked
• GVM (per axle) — 2000 kg
• Stud pattern — 5 studs
• PCD — 4 1/2 inch
• Stud width — 1/2 inch
• Rotor diameter — 275 mm
• Outer bore — 45 mm (Current Model)
• Inner bore — 65 mm (Current Model)
• Flange thickness — 15 mm (Current Model)
• Flange diameter — 220 mm (Current Model)
• Boss length — 30 mm (Current Model)
• Alternative (Spigot Type) bore/length — Outer 50 mm, Inner 65 mm, Flange 13 mm, Flange diameter 190–260 mm, Boss length 30 mm
• Pack weight — approximately 21 kg
• Part number — T038135
• Applications — designed for Duratorque and beam axles; widely compatible with NZ-manufactured trailer axles
• Calipers — standard caliper sets sold separately
• Note — a range of spare parts is available to support ongoing maintenance

Who is this hub kit for?

Ideal for trailer builders and operators who require dependable disc braking on a single-axle setup. If you’re upgrading from drum brakes or equipping a heavy-duty trailer that regularly carries substantial loads, this hub kit offers confident braking performance, durability, and compatibility with common wheel assemblies. It’s particularly well-suited for Duratorque and beam axle configurations, while remaining a practical choice for NZ-manufactured trailers needing standardization across wheel patterns.

Use cases and practical benefits

• Construction and utility trailers that haul heavy equipment or bulky loads
• Long-haul or regional trailers where consistent braking performance matters after repeated stops
• Fleet upgrades where standardization of wheel studs and rotors reduces maintenance complexity
• Repair or replacement projects requiring a resilient 275 mm rotational braking surface with readily available spare parts

When you choose the Hub Kit 5X41/2X1/2 CI Disc Braked 2000kg, you’re selecting a purpose-built solution that couples solid load handling with reliable disc braking performance. Confirm compatibility with your axle model (Duratorque, beam, or NZ-manufactured variants) and plan for caliper sets sold separately to complete your braking system. For precise fitment, refer to the current model bore and flange dimensions and consider the spigot-type variant if your setup uses that configuration.