• 2908G Dunbier Hard Poly Dog Bone Grey Keel Roller 8" | Marine Trailer Part
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2908G Dunbier Hard Poly Dog Bone Grey Keel Roller 8" | Marine Trailer Part

2908G Dunbier Hard Poly Dog Bone Grey Keel Roller 8" | Marine Trailer Part

$15.50 AUD
$15.50 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Dunbier Grey Hard-Poly Dogbone Keel Roller 8 Inch – Part Number: 2908G

A grey hard poly dogbone keel roller for boat-trailer keel and hull-support systems. The 8" / 200mm roller is designed to provide controlled hull support and smooth movement during launch and retrieval while matching the specified pin and bracket system.

⚙️ Key Features

  • grey hard poly construction
  • dogbone keel profile supports and guides the hull
  • Nominal roller size: 8" / 200mm
  • Designed for repeated immersion and boat-trailer launch/retrieve cycles
  • Replaceable independently of a serviceable bracket or roller rail

📏 Specifications

  • Nominal size: 8" / 200mm
  • Approximate dimensions: 200 × 45 × 70mm
  • Centre bore: approximately 20mm
  • Recommended matching roller pin: Dunbier 3020B or 3020S, 245 × 20mm
  • Material/profile: grey hard poly, dogbone keel

🔄 Cross Reference & Related Parts

  • Dunbier: 2908G

🚤 Trailer Compatibility & Application

  • Hard poly is commonly selected for aluminium hulls and other robust hull-contact points
  • Bracket width, roller-pin diameter and installed clearance must match the existing trailer
  • The roller should contact a structurally supported hull area rather than fittings, strakes or unsupported panels
  • Roller shape and firmness should be matched to the hull material and keel profile

🔌 Function

Supports the boat during storage and road transport while allowing the hull to roll over the trailer during launching and retrieval. The shaped profile also helps maintain centreline alignment.

⚠️ Common Signs of Failure

  • Roller is cracked, split, flattened or permanently distorted
  • Material has hardened, softened excessively or become UV-damaged
  • Centre bore is elongated and allows the roller to wobble
  • Roller no longer turns freely on the pin
  • Hull develops marks because the roller surface is damaged or contaminated

🛠️ Installation & Safety

  • Support the boat safely before removing any load-bearing roller
  • Use the specified pin diameter with suitable washers and retaining hardware
  • Align the roller so the hull load is centred across the profile
  • Confirm free rotation without excessive side movement
  • Recheck all roller heights and hull support after replacement

📦 Condition

  • Brand new Dunbier Marine Products trailer component
  • Supplied as one 8" / 200mm grey hard poly roller
  • Supplied in original or equivalent packaging

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

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?

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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