3954-100B Dunbier Swing Drawbar Pin | Marine Trailer Part
3954-100B Dunbier Swing Drawbar Pin | Marine Trailer Part
Couldn't load pickup availability
✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide
🔧 Product Description
Dunbier Swing-Drawbar Replacement Pin – Part Number: 3954-100B
A pin-only replacement for the matching large/100mm swing-drawbar hinge. The hardened or heavy-section pin passes through the aligned hinge plates and locks the swing drawbar in its straight towing position.
⚙️ Key Features
- Replacement lock pin for Dunbier swing drawbar
- Removable service component
- Maintains hinge alignment
- Corrosion-resistant finish as supplied
- Pin only
📏 Specifications
- Application: Dunbier swing-drawbar hinge
- Pin diameter and usable length must match the hinge
- Retainer: not included
🔄 Cross Reference & Related Parts
- Dunbier: 3954-100B
- DIY kits: Dunbier 3945 and 3946
- Use only the pin specified for the installed hinge
🚤 Trailer Compatibility & Application
- Suitable for the matching Dunbier swing-drawbar assembly
- A loose substitute bolt must not be used
- Hinge holes must remain round and correctly aligned
🔌 Function
Locks the folding drawbar rigidly in the towing position.
⚠️ Common Signs of Failure
- Pin is bent or deeply scored
- Retaining clip is missing
- Holes are elongated
- Pin cannot be inserted fully
- Corrosion prevents removal
🛠️ Installation & Safety
- Support and align the drawbar before inserting the pin
- Fit the retaining clip completely
- Do not tow with a partially inserted pin
- Replace worn hinge plates as well as the pin
- Lubricate lightly with a non-grit-attracting corrosion protectant
📦 Condition
- Genuine Dunbier Marine Products part
- Brand new
- Supplied as one swing-drawbar pin
- 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.
Share
