The Oil Dampened Override Coupling from Trojan delivers reliable, controlled towing for heavy trailers with a true 2500kg capacity. Designed to meet and exceed key industry standards, this coupling is the robust solution you need when safety, durability, and ease of maintenance matter on every trip.

• NZ standard compliance: Fully compliant with NZS5232:1993 for towball couplings, giving you confidence that your trailer connection meets national requirements.
• Tow ball compatibility: Suits both 50mm and 1 7/8" tow balls, offering versatility for a wide range of trailers.
• High-strength construction: Cast iron build with substantial corrosion protection to resist the harsh conditions of long-term use, reducing maintenance needs.
• Oil-dampened design: Engineered to cushion engagements and decouplings, improving stability and reducing snatch or surge during starts, stops, and road irregularities.
• 2500kg rated, durable mounting: Rated to a maximum of 2500kg, making it well-suited for trailers with a GVM over 2500kg; designed for dependable performance in demanding applications.
• Common bolt pattern for easy installation: One of NZ’s most familiar bolt mounting patterns; requires four 12mm high-tensile bolts mounted across a standard bolt center pattern for secure fitting.
• Quality assurance through parts availability: Trojan backs this coupling with a broad range of spare parts, including head, mainshaft, damper, and related assemblies to keep your setup field-serviceable and ready for action.
• Australian standard alignment: Complies with AS4177.3 (1994), reinforcing cross-border compatibility and quality expectations for towing systems.
• Ideal for generous loads and specialist trailers: A top pick for horse floats and caravans where stability, reliability, and long-term protection are essential.

What this means in practice:

• Peace of mind on long journeys and rural roads thanks to an oil-damped mechanism that softens the transfer of load between the tow vehicle and trailer.
• Less maintenance fuss over the years due to heavy corrosion protection and durable cast iron construction.
• Simple, familiar installation using four 12mm bolts — a straightforward upgrade path for existing trailers with compatible mounting.
• Direct access to genuine spare parts ensures your system can be serviced without replacing the entire unit.

Who should consider this coupling? Trailers and caravans that regularly carry substantial loads, especially horse floats and other heavy-duty tow setups, where certified standards, reliability, and ease of service are non-negotiable. With Trojan’s engineering pedigree and a focus on field-ready durability, this oil dampened override coupling is built to perform after years of use, not just months.

T201670 Spare Parts Assembly (Catalogue link) Page 122