1718 Dunbier A1353 Mackay Two-Part Seal Slimline Suits AL-KO Axles | Marine Trailer Part
1718 Dunbier A1353 Mackay Two-Part Seal Slimline Suits AL-KO Axles | Marine Trailer Part
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🔧 Product Description
Dunbier Two-Part Slimline Marine Seal for AL-KO Axles – Part Number: 1718
A two-piece marine hub seal for AL-KO 65mm square axle family. One sealing component fits the hub and the mating ring seats on the axle spindle, creating a controlled running surface intended to improve grease retention and water exclusion during repeated boat-launching cycles.
⚙️ Key Features
- Two-piece marine grease-seal design
- Matched hub insert and spindle mating ring
- Improved water exclusion compared with a basic single-lip seal when correctly installed
- Designed for repeated immersion service
- Service replacement for compatible Dunbier/Mackay axle families
📏 Specifications
- Axle compatibility: AL-KO 65mm square axle family
- Hub compatibility: matching AL-KO 2.2-tonne hubs
- Reference: A1353 seal family
- Pack format: single service set
- Both seal halves must be replaced and installed as a matched set
🔄 Cross Reference & Related Parts
- Dunbier: 1718
- Related complete bearing-and-seal kits are available for the same axle family
- Do not mix one half with a different seal family
🚤 Trailer Compatibility & Application
- Suits AL-KO 65mm square axle family
- Confirm the spindle shoulder, seal journal and hub counterbore match the two-part system
- Not interchangeable with a conventional press-in seal unless the axle and hub were manufactured for conversion
🔌 Function
Creates a rotating marine grease barrier between the hub and spindle to retain lubricant and reduce water entry.
⚠️ Common Signs of Failure
- Grease escapes between the seal faces
- Water contamination returns after hub service
- Stainless mating ring is grooved or loose
- Elastomer section is torn, hardened or distorted
- Seal faces were damaged during hub removal
🛠️ Installation & Safety
- Remove both old seal components
- Clean and inspect the hub counterbore and spindle journal
- Install each half squarely with the correct drivers
- Pack and adjust the bearings before final assembly
- Check that the hub rotates freely without seal binding
📦 Condition
- Genuine Dunbier Marine Products trailer component
- Brand new
- Supplied as one matched two-part marine grease-seal set
- 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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