Boat Trailer Rollers - V Blocks

41/2" Large V Block Rubber 12mm Bore

SKU: V-91401

$14.10
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The 91401 4½" Large Black Rubber V-Block is a heavy-duty boat trailer bow support designed to cradle and locate the hull securely against the trailer winch post or bow-stop assembly. It features a 102mm base, approximately 120mm maximum width and 12mm centre bore. The moulded black rubber construction provides cushioned hull contact and a deep V-profile for positive bow positioning during retrieval and transport.

Key benefits

Key Benefits

  • Large 4½" class V-block
  • 102mm / 4.02" base
  • Approximately 120mm / 4.72" maximum width
  • 12mm / 0.472" mounting bore
  • Heavy-duty black rubber construction
  • Deep V-profile helps locate and support the bow
  • Cushioned contact between hull and trailer hardware
  • Suitable for bow-stop and winch-post applications

Dimensions

  • Base: 102mm / 4.02"
  • Maximum overall width: approximately 120mm / 4.72"
  • Overall height: approximately 100mm / 3.94"
  • Mounting bore: 12mm / 0.472"

Suitable Applications

  • The 91401 is suitable for boat trailer bow-stop and winch-post assemblies, particularly where a larger V-shaped contact area is required. The V-profile helps centre the bow and provides a positive stopping/support point as the boat is retrieved onto the trailer.

Signs the V-Block Needs Replacing

  • Replace the V-block if the rubber becomes cracked, split, hardened, badly compressed or deeply worn, if the V-profile has become distorted, or if the mounting hole has enlarged enough to allow excessive movement. Check the mounting bolt and winch-post bracket for corrosion or wear at the same time.

Shipping

Ships Australia-wide