Hub and Stub Kit 275 CI D/B 5x120x7/16

The Hub and Stub Kit 275 CI D/B 5x120x7/16 is a purpose-built, non-braked hub solution designed to fit Trojan products and a wide range of NZ trailer axles. This kit blends durable cast-iron construction with flexible rotor configurations, giving you a reliable hub assembly that’s ready for everyday towing tasks—from utility trailers to boat haulers.

Why this kit stands out

• : Each hub is rated for a 2000 kg GVM per axle (based on a single axle with a matched pair of hubs), delivering confidence for heavier loads and longer hauls.
• Versatile stud patterns: The kit covers multiple wheel patterns, with the most common 5-stud arrangement at a 4 1/2 inch PCD, ensuring compatibility with the majority of NZ trailer rims and tyres.
• 275 mm rotor options: Rotor diameter is 275 mm, with either an integral rotor in the cast-iron hub or a bolt-on rotor option in cast iron or stainless steel. This gives you the choice between streamlined integration and serviceable rotor configurations.
• Built-in caliper mounting on stub axles: Each kit includes a pair of 38 mm round stub axles featuring a built-in caliper mount, simplifying assembly and alignment.
• Calipers sold separately: Caliper sets are not included with the hub kit, which keeps compatibility flexible and allows you to pair with your preferred braking components when you’re ready to upgrade.
• Comprehensive rotor/pattern options: Available configurations include both integral rotor versions and bolt-on rotor versions across 5 and 6 stud patterns, with 4 1/2 inch or 5 1/2 inch PCDs and 7/16 inch or 1/2 inch stud widths, as detailed in the part profiles (T137135, T137155, T138105, T138135, T138140, T138155, T138305, T138335, T138340, T138355).
• NZ-ready fit: While designed for Trojan systems, this hub kit is compatible with most NZ-manufactured trailer axles, making it a practical upgrade or replacement across regional fleets.

What you get and how it helps you

• A robust pair of hubs engineered for durability in trailer duty cycles, paired with a matching set of 38 mm stub axles featuring built-in caliper mounts for precise, reliable alignment.
• Flexibility to choose between integral or bolt-on rotor configurations, enabling you to tailor the kit to your braking preferences and serviceability needs.
• A kit that supports a wide range of wheel sizes thanks to multiple stud patterns and PCD options, helping you keep your trailer wheels compatible with your existing rims and tyres.

Who should consider this kit

• Trailer owners in NZ looking to upgrade to a reliable hub-and-stub assembly that supports a 2000 kg GVM per axle.
• Users upgrading Trojan-related trailers or beam-axle setups who want a flexible, rotor-inclusive hub option.
• Anyone replacing worn hubs on utility, caravan, or boat trailers who needs a robust, field-proven solution with multiple rotor and pattern configurations.

Practical notes

• Rotor options are available as integral or bolt-on in cast iron or stainless steel, with 275 mm diameter rotors fitting standard caliper systems sold separately.
• With a pack weight of approximately 28 kg, these hub kits are designed for straightforward shipment and on-site handling, with typical supplier dispatch in 4–7 days.

Part identifiers and configurations you’ll encounter include T137135 (Integral rotor, 5 studs, 4 1/2 inch PCD, 1/2 inch stud width, 67.183 mm hub face), T137155 (Integral rotor, 6 studs, 5 1/2 inch PCD, 1/2 inch stud width, 82.118 mm), and multiple bolt-on options in cast iron or stainless steel such as T138105, T138135, T138140, T138155, T138305, T138335, T138340, and T138355. These variations let you precisely match your axle and wheel setup.

Upgrade with confidence and keep your NZ trailer running smoothly with a hub and stub kit designed for durability, compatibility, and practical configurability.