1969P Dunbier H3091 Mackay Mechanical Disc Caliper Mounting Bolt Sleeve Pair | Marine Trailer Part

🔧 Product Description

Dunbier Mechanical-Caliper Mounting Bolt Sleeves - Pair - Part Number: 1969P

A matched pair of replacement mounting-bolt sleeves for Dunbier mechanical disc-brake calipers. Replacing both sleeves helps restore consistent caliper alignment and movement across the complete mounting assembly.

⚙️ Key Features

• Two matching caliper mounting sleeves

• Suits compatible Dunbier mechanical disc calipers

• Restores mounting-bolt support and spacing

• Helps reduce caliper rattle and uneven pad wear

• Pair package for complete caliper service

📏 Specifications

• Quantity: 2 sleeves

• Mackay reference: H3091

• Exact bore, length and outside diameter must match the existing caliper

🔄 Cross Reference & Related Parts

• Dunbier: 1969P

• Mackay: H3091

• Single sleeve: Dunbier 1969

• Mechanical caliper: Dunbier 1971

• 15mm caliper mount and bolts: Dunbier 1970

🚤 Trailer Compatibility & Application

• Suitable for compatible Dunbier mechanical caliper mounting systems

• Replace as a pair where wear is uneven

• Not suitable for unrelated hydraulic slide-pin systems

🔌 Function

Provides the correct bearing and spacing surfaces for both caliper mounting bolts.

Common signs of wear or replacement:

• Caliper rattles or moves excessively

• Sleeves are rusted, scored or seized

• Pad wear differs between inner and outer faces

• Bolt shanks show fretting

• Caliper cannot align squarely over the rotor

🛠️ Installation & Safety

• Remove and support the caliper safely

• Inspect both bolts, bracket holes and caliper bores

• Use the correct replacement bolts and locking hardware

• Keep all lubricant away from friction surfaces

• Check full movement and brake release after installation

📦 Condition

• Brand new Dunbier Marine Products trailer component

• Supplied as one pair of mechanical-caliper mounting sleeves

• Supplied in original or equivalent packaging