1921 Dunbier A1331 Mackay Trojan Stainless Rotor Only 275 x 11mm 2.2t | Marine Trailer Part

🔧 Product Description

Dunbier Trojan Stainless Steel Rotor 275 × 11mm - 2.2T - Part Number: 1921

A replacement stainless steel brake rotor for the Trojan 2.2-tonne six-stud hub system. The 275mm-diameter, 11mm-thick disc replaces a worn braking surface while retaining the compatible hub where the assembly is designed for rotor service.

⚙️ Key Features

• Stainless steel rotor construction

• 275mm nominal diameter

• 11mm nominal thickness

• Designed for Trojan 2.2-tonne hydraulic brake systems

• Replacement braking surface for the matching six-stud hub

📏 Specifications

• Rotor diameter: 275mm

• Nominal thickness: 11mm

• Material: stainless steel

• Mackay reference: A1331

• Mounting pattern must match the Trojan hub

🔄 Cross Reference & Related Parts

• Dunbier: 1921

• Mackay: A1331

• Matching caliper: Dunbier 1923 stainless 11mm hydraulic caliper

• Complete hub/rotor assembly: Dunbier 1918

🚤 Trailer Compatibility & Application

• Suits compatible Trojan 2.2-tonne six-stud hub assemblies

• Use only with calipers designed for 11mm rotors

• Confirm bolt pattern, offset and minimum thickness

🔌 Function

Provides the rotating friction surface clamped by the brake pads to slow the trailer.

Common signs of wear or replacement:

• Rotor thickness is below specification

• Deep scoring, cracking or severe heat spotting

• Excessive run-out or pulsation

• Heavy corrosion on the braking faces

• Mounting holes or centre register are damaged

🛠️ Installation & Safety

• Replace pads when fitting a new rotor if worn or contaminated

• Clean protective residue before installation

• Torque rotor fasteners in sequence where removable

• Verify caliper alignment and free rotation

• Bed the brake system progressively

📦 Condition

• Genuine Dunbier Marine Products trailer component

• Brand new

• Supplied as one replacement 275 × 11mm rotor

• Supplied in original or equivalent packaging