Seat Bungs

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  • TAPERED ANGLE CUT SEAT PAN BUNG 3/8 X 16, 5/16" X 18 THREADED MOUNT FOR SPING SUPPORT OF SEAT ON CHOPPER BOBBER TAPERED ANGLE CUT SEAT PAN BUNG 3/8 X 16, 5/16" X 18 THREADED MOUNT FOR SPING SUPPORT OF SEAT ON CHOPPER BOBBER

    Tapered / Angled Seat Bung

    TSB
    $15.50
    Tapered / Angled Seat Pan Bungs These tapered seat bugs are used to attach the springs for a sprung seat when a flat bung will not work. The taperd side gets welded to the seat pan to help create a more parallel orientation for the seat spring for a...
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  • solo sprung seat front pivot weld on with bushings solo sprung seat front pivot weld on with bushings

    Sprung Seat Front Pivot

    SSFP
    $27.00
    Spring Seat Front Piviot Our front pivot contains stainless shoulder bolts for a snug fit and bronze oilite bushings for trouble free operation. When used properly, these pivots remove most side to side play found in some sprung seats. This is a weld on...
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  • SEAT SPRING PERCH MOUNT WELD ON TO 1" OR 1-1/4" DIA TUBE TO FRAME CHASSIS MOUNT SEAT SPRING PERCH MOUNT WELD ON TO 1" OR 1-1/4" DIA TUBE TO FRAME CHASSIS MOUNT

    Seat Spring Perch / Mount

    SSP
    $22.00
    Seat Spring Perches / Mount These are our Seat Spring Perches.  These are normally welded to the chassis crossbar to locate and retain the lower section of the springs for your sprung solo seat. These are made from a solid piece of mild steel and...
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  • seat pan flat bungs low profile 3/8 x 16, 5/16" x 18 weld on cold rolled mild steel seat pan flat bungs low profile 3/8 x 16, 5/16" x 18 weld on cold rolled mild steel

    Seat Pan Bungs

    SPTB
    $4.25
    Seat Pan Bungs If you are making your own steel seat pan or a thin larger dia mount you will need a few of these. Their larger diameter helps spread the load around the usually much thinner seat pan and the shallow thickeness enables you to keep the...
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Seat Bungs – Weld-On Mounting Solutions for Custom Motorcycle Seats


Bung King’s seat bungs are CNC-machined in the USA from high-quality steel and stainless steel, designed specifically for mounting custom solo seats, chopper seats, or bobber-style seat pans to your motorcycle rigid frame. These weld-on bungs create a solid and secure threaded mounting point, ideal for builders seeking reliable and clean seat installations.

 

Available in a variety of sizes and thread options, these bungs are perfect for fabricators working on Harley-Davidson Sportster, Dyna, Softail, and custom hardtail or rigid frame builds. Whether you’re mounting a spring seat or a rigid pan, Bung King seat bungs offer a simple, durable solution for precision seat placement.

 

Key Features:

Designed for seat pan and bracket mounting
CNC-machined in the USA from steel or stainless steel
Available in multiple sizes and thread options
Ideal for custom motorcycle builds, including Sportster, Dyna, Softail, and more
Weld-ready construction for secure, clean installations
Trusted by professional builders and custom fabricators


When you're building a seat setup that needs to stay firmly in place, Bung King’s seat bungs are the professional's choice for strength and fitment.

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