Biltwell Gen 3 Seat Hinge Bung

The Gen 2 investment-cast chromoly steel bung fits 1-1/2” O.D. backbone tubes on stock and custom motorcycle frames. Includes self-lubricating bronze pivot bushings to reduce binding, ensure tighter tolerances and provide smoother operation when paired with a Biltwell seat hinge. Raw finish welds easily and takes rattle can paint like a champ.


  • Mates to any generation or style of Biltwell brand seat hinge
  • Sold each
Fitment Notes & Exceptions
  • Requires fabrication, welding and frame painting
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Product Style Item # Manufacturer Product # Availability
Biltwell Gen 3 Seat Hinge Bung 1180297 SB-BRZ-RW-G3 Available: Requires 1-3 business days of lead time prior to shipment