Override Coupling for Hydraulic, Spring Dampened – 2500kg

Trojan’s Override Coupling is a robust, hydraulic spring-dampened braked trailer coupling designed to keep heavy towed loads secure and controlled. Built to suit a 1 7/8" towball and the TC40 mounting standard, it offers a reliable, single-piece connection that absorbs shock and minimizes hitching noise and impact during start/stop and rough road conditions.

Key features you’ll notice in everyday use:

• High-capacity 2500 kg rating for dependable performance on mid-to-heavy trailers, caravans, horse floats, and other/braked towing setups.
• NZ-standard bolt pattern with a common mounting footprint. The pattern is measured across bolt centers, ensuring straightforward, repeatable installation on compatible frames.
• Four M12 high-tensile bolts recommended for a secure, vibration-resistant fit. When pairing with grade 8.8 or 10.9 bolts, typical torque ranges apply to maintain optimal clamping force.
• Australian Standard AS4177.3 (1994) compliance to support safety, compatibility, and regulatory confidence across markets that rely on this standard.
• Hydraulic, spring-dampened design provides smoother decoupling and controlled braking dynamics, reducing wear on the towed unit and improving road feedback for the driver.
• Durable construction crafted from cast components with corrosion protection to withstand the harsh conditions of trailer use and outdoor exposure.

Who benefits most from this coupling? operators of braked trailers and caravans that demand extra reliability and ease of maintenance: caravan enthusiasts, agricultural practitioners, and professional fleet operators who frequently tow heavy loads and require consistent, repeatable mounting with a straightforward installation pattern.

Practical tips for maximum performance:

• Follow the four-bolt mounting approach using M12 high-tensile bolts; verify bolt grade (G 8.8 or equivalent) and apply the recommended torque (typically around 100–120 Nm depending on bolt grade) to ensure a secure fit.
• Inspect the bolt pattern and mounting hardware during routine trailer servicing. Re-torque after the first few trips or after any heavy road exposure to maintain clamping integrity.
• Use the hydraulic-spring dampening feature to absorb road shocks, especially on rough or uneven surfaces, to extend coupling life and improve towing stability.
• Ensure compatibility with your towball size (1 7/8") and that your trailer’s frame supports the NZ/AS4177.3 compliant mounting footprint.

Trojan’s engineering heritage in braked trailer couplings translates to consistent performance and peace of mind on the road. This TC40-compatible override coupling delivers a dependable, maintenance-friendly solution for serious towing needs, backed by a brand trusted by professional operators across New Zealand and Australia.

Note: Always verify mounting hardware specs and torque values with the latest product datasheet and local regulations to ensure exact compliance for your setup.