A1369 Mackay 25mm Slotted Axle Nut | Marine Trailer Part
A1369 Mackay 25mm Slotted Axle Nut | Marine Trailer Part
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide
🔧 Product Description
Genuine Mackay Marine Trailer Products Heavy-Duty 25mm Slotted Axle Nut – Part Number: A1369
A slotted axle nut for compatible heavy-duty 25mm-thread trailer stub axles. The nut secures the hub and allows a split pin to lock the final bearing-preload position.
⚙️ Key Features
- Heavy-duty slotted/castellated axle-nut design
- Nominal 25mm thread application
- Provides positive split-pin locking
- Replacement for damaged or lost hub-retaining nuts
- Suitable for compatible heavy-duty trailer axles
📏 Specifications
- Nominal thread size: 25mm
- Thread pitch must match the axle stub
- Washer and split pin are supplied separately unless stated
🔄 Cross Reference & Related Parts
- Use with the matching axle washer and new split pin
- Smaller standard axle-nut kit: Mackay A1368
🚤 Compatibility & Application
- Compatible heavy-duty trailer stub axle with matching 25mm thread
- Set bearing preload before installing the split pin
- Do not use an impact wrench to set bearing adjustment
- Replace if slots or threads are damaged
🔌 Function
Retains the hub on the axle and locks the bearing adjustment using a split pin.
⚠️ Common Signs of Failure
- Threads are stripped or galled
- Nut slots are cracked or rounded
- Nut cannot be aligned without incorrect bearing preload
- Axle thread is damaged
- Split pin does not seat correctly
📦 Condition
- Genuine Mackay Marine Trailer Products part
- Brand new
- 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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