Discontinued Product!

The Biltwell Seat Hinge Bung
has been discontinued and will not be returning
Replacement Suggestion:
Biltwell Closeouts
Out of Stock
Biltwell Seat Hinge Bung
  • Biltwell Seat Hinge Bung
  • Biltwell Seat Hinge Bung

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Biltwell Steel Seat Hinge

This investment-cast chromoly steel bung fits 1-1/2” O.D. backbone tubes on stock and custom motorcycle frames, and makes a great hinge point for ours and any number of other custom solo seat hinges. We sell this bung separately from the hinge because it makes a great mount for all sorts of other custom projects: headlight bracket, muffler hangers - all sorts of stuff! 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

This is a universal fit part; it may or may not fit without modification.

  • Requires fabrication, welding and frame painting
Product Style RevZilla Item # Manufacturer Product # Availability
Raw 890003 SB-RAW-00-G2 Out of Stock


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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Have a functionality, fit, or otherwise product-specific question about the Biltwell Seat Hinge Bung? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

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Do you offer any of these mounts where they sit on a plate instead of the backbone tube used with a hard tail frame made by kraft or close to that?
A shopper on Mar 5, 2015