ARK Rocker Roller Centre Arm Galvanised for 2–4T Suspension Kits – Suits 60mm Springs (SKU: RRA24G)

The ARK Galvanised Rocker Roller Centre Arm (RRA24G) is engineered for high-load trailer suspension systems, delivering robust performance in even the harshest environments. Specifically designed to suit 2T, 3T, and 4T rocker roller kits, this heavy-duty centre rocker arm supports efficient load distribution across dual axles.

Constructed with a 19mm centre bolt hole and 17mm spring joint holes, the RRA24G offers a secure and precise fit for 60mm wide leaf springs. With a 190mm spacing between spring holes, this arm is ideal for large trailers that carry substantial weight—such as commercial, marine, or off-road caravans.

Its galvanised coating provides superior protection against rust and corrosion, making it an excellent choice for coastal, wet, or high-humidity conditions where standard steel just won’t cut it.

Key Features:

• Suits 2–4 tonne rocker roller suspension kits
• Centre bolt hole diameter: 19mm
• Spring joint bolt hole diameter: 17mm
• Distance between spring bolt holes: 190mm
• Fits 60mm wide leaf springs
• Galvanised finish for long-term corrosion resistance

Applications:

• Heavy-duty tandem trailers
• Caravans and camper trailers with high load demands
• Marine trailers exposed to saltwater conditions
• Utility trailers in industrial and rural settings

Why ARK & Why Galvanised?

ARK is a leading Australian manufacturer of trailer suspension components, trusted for their reliability and rugged design. The RRA24G’s galvanised finish ensures that you get the best mix of strength and longevity—especially important for trailers regularly exposed to the elements.

Installation Tips:

• Ensure correct torque settings on all 19mm and 17mm fasteners
• Install with compatible shackles and rocker roller equaliser kits
• Inspect bolt holes regularly for signs of wear or elongation
• Use anti-seize compound in wet or salty environments