H3091 Mackay 1969P Dunbier Mechanical Disc Caliper Mounting Bolt Sleeve (Per Pair) | Marine Trailer Part
H3091 Mackay 1969P Dunbier Mechanical Disc Caliper Mounting Bolt Sleeve (Per Pair) | Marine Trailer Part
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide
🔧 Product Description
Mackay Mechanical Disc-Caliper Mounting Bolt Sleeve Pair – Part Number: H3091
A pair of stainless-steel caliper slider sleeves for compatible mechanical disc-brake calipers. The sleeves support the mounting bolts and allow controlled caliper movement while maintaining alignment.
⚙️ Key Features
- Stainless-steel slider sleeves
- Supplied as a pair
- Designed for compatible mechanical calipers
- Maintains bolt alignment and caliper float
- Corrosion-resistant marine brake hardware
📏 Specifications
- Quantity: 2 sleeves
- Dunbier reference: 1969P
- Inside diameter, outside diameter and length must match the original caliper
🔄 Cross Reference & Related Parts
- Mackay: H3091
- Dunbier: 1969P
- Related mechanical caliper mount and bolts: Mackay H3261K / Dunbier 1970
🚤 Trailer Compatibility & Application
- Suitable for the specific mechanical caliper slider-bolt system
- Do not substitute DeeMaxx or hydraulic slide sleeves without dimensional confirmation
🔌 Function
Provides the bearing surface on which the floating mechanical caliper moves during brake application and release.
⚠️ Common Signs of Failure
- Sleeves are grooved, seized or corroded
- Caliper has excessive movement
- Pads wear unevenly
- Bolt binds in the sleeve
- Sleeve is missing or incorrect length
🛠️ Installation & Safety
- Clean the bolt and caliper bore
- Use only the approved brake-caliper lubricant
- Replace sleeves and worn bolts together where required
- Torque mounting hardware correctly
- Confirm free caliper movement before road testing
📦 Condition
- Brand new Mackay trailer component
- Supplied as one pair of mechanical caliper mounting sleeves
- Supplied in original or equivalent packaging
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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