3328 Dunbier Galvanised SR Cross Member 50 x 50 x 1625mm | Marine Trailer Part
3328 Dunbier Galvanised SR Cross Member 50 x 50 x 1625mm | Marine Trailer Part
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide
🔧 Product Description
Dunbier Galvanised Supa-Rolla Crossmember 50 × 50 × 1625mm – Part Number: 3328
A replacement galvanised straight Supa-Rolla chassis crossmember measuring 50 × 50mm in section and approximately 1625mm overall. It spans the trailer side frames, supports roller or pad hardware and helps maintain chassis alignment under the boat.
⚙️ Key Features
- Straight Supa-Rolla profile
- 50 × 50mm structural section
- Approximate overall width: 1625mm
- Hot-dip galvanised finish
- Suitable for replacement or trailer refurbishment
- Provides mounting support for roller, pad and suspension-related hardware as configured
📏 Specifications
- Section: 50 × 50mm
- Overall width: 1625mm
- Profile: straight Supa-Rolla
- Finish: galvanised
- Mounting holes and brackets must match the trailer
🔄 Cross Reference & Related Parts
- Dunbier: 3328
- Related width/section alternative: Dunbier 3326
- Rear swing members: Dunbier 3343, 3343W, 3344 and 3345
- Supa-Rolla assemblies: Dunbier 3330–3342
🚤 Trailer Compatibility & Application
- Suitable for Dunbier trailers using the matching frame width and crossmember section
- Roller brackets, spring hardware and frame attachment points must align with the original trailer
- Not interchangeable solely by overall width; profile and mounting locations must also match
🔌 Function
Ties the trailer side frames together and carries hull-support hardware across the chassis.
⚠️ Common Signs of Failure
- Crossmember is bent or twisted
- Deep corrosion or perforation is present
- Mounting holes are elongated
- Welds or bracket interfaces are cracked
- Hull-support alignment cannot be restored
🛠️ Installation & Safety
- Support and unload the trailer structure before removal
- Measure frame width, section and hole centres before installation
- Use correctly rated U-bolts, brackets or welded mounts
- Protect drilled or cut surfaces against corrosion
- Professionally inspect the chassis after impact damage
📦 Condition
- Genuine Dunbier Marine Products part
- Brand new
- Supplied as one 1625mm galvanised trailer crossmember
- 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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