Trojan 300mm Dog Bone Roller with 20mm Galvanised Bush – Urethane Boat Trailer Roller (SKU: 415031)

The Trojan 300mm Dog Bone Boat Trailer Roller is a rugged and reliable solution for effortless boat launching and retrieval. Constructed from high-grade urethane, it offers exceptional strength, resilience to deformation, and long-lasting wear resistance – even in harsh marine environments.

At its core lies a 20mm galvanised steel bush, designed to resist corrosion and ensure smooth rotation. The dog bone design helps maintain optimal hull alignment and control, especially during launch or when winching your boat back onto the trailer.

Whether you’re running full skid-style bunks, keel rollers, or bumper cover systems, this roller is designed to minimise hull damage and wear over time. It’s a direct fit for many standard trailer configurations and works seamlessly in both DIY builds and professional trailer repairs.

Key Features:

• Length: 300mm
• Dog bone style for improved hull guidance
• Made from marine-grade urethane – tough, flexible, and UV resistant
• 20mm galvanised bush for enhanced corrosion protection
• Ideal for boat trailers with bunks, skids or bumper bars
• Designed for smoother launching and retrieval

Why Choose Trojan?

Trojan is an established name in the trailer industry, known for their consistent quality and reliability across Australia and New Zealand. This roller is no exception – it meets the expectations of serious boaters who need trustworthy performance every time they hit the ramp.

Installation Tips:

• Ensure the roller is correctly aligned with the hull contact points
• Lubricate the bush if necessary during install
• Secure using compatible roller pins and brackets (not included)
• Periodically inspect for wear or damage, especially after heavy saltwater use