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  • thin low profile universal weld on mounting bung kit thin low profile universal weld on mounting bung kit

    Thin Universal Mount Set

    TUMK
    $16.00
    Thin Universal Mount Kit These are similar to our universal mounts but by utilizing different hardware we are able to shrink down the overall height these are used anytime a lower profile mount is desired. A kit includes: 2 ea Threaded bung tapped to...
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  • Spring seat front pivot kit with stainless shoulder bolts, bronze Oilite bushings, weld-on tabs, and 1.125" x 0.75" steel bung. Complete weld-on front pivot assembly for sprung motorcycle seat, includes CNC-cut tabs, shims, bushings, and stainless hardware.

    Sprung Seat Front Pivot

    SSFP
    $27.00
    Spring Seat Front Pivot Kit – Weld-On with Stainless Shoulder Bolts & Oilite Bushings Upgrade your motorcycle's sprung seat setup with our Spring Seat Front Pivot Kit – engineered for smooth, stable performance and long-lasting durability...
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  • GAS TANK WELD ON BUNGS WITH CROSSOVER

    Gas Tank Kit

    GTbk
    $10.00
    This gas tank kit gives you the peices needed to relocate your petcock and add a crossover. includes: Two 1/8" NPT bungs for crossovers and one 3/8" npt for a petcock
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  • Straight motor mount kit for Harley – includes bullet bung, round bar, and head bungs Straight weld together DIY motor mount kit chopper upper top motor mount evolution twin cam shovelhead panhead

    Straight Motor Mount Kit

    SMMK
    $20.00
    Straight Motor Mount Kit – Custom Chassis to Head Support for V-Twin Builds This Straight Motor Mount Kit includes all the high-quality components you need to fabricate a clean, strong motor mount for your V-Twin motorcycle. Designed for custom...
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  • Curved motor mount kit for Harley – includes bullet bung, round bar, and head bungs curved weld together top motor mount upper mount mild steel bung harley panhead shovelhead evolution twin cam chopper bobber

    Curved Motor Mount Kit

    CMMK
    $25.00
    Curved Motor Mount Kit – Custom Chassis to Head Support for V-Twin Builds This Curved Motor Mount Kit includes all the high-quality components you need to fabricate a clean, strong motor mount for your V-Twin motorcycle. Designed for custom...
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  • Jockey Shift Motor Mount Kit components for Harley-Davidson Close-up of bronze bushing pivot for jockey shift mount on Pan Head

    Jockey Shift Motor Mount Kit

    JSMMK
    $37.50
    Jockey Shift Motor Mount Kit – Harley Davidson Models Build your own custom jockey shift setup with our Jockey Shift Motor Mount Kit, designed with an integral pivot for smooth and reliable operation. This kit makes it easy to create a tank-style...
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  • Motorcycle Curved Fender Struts DIY Kit – Bung King Fabrication Parts Bung King Curved Fender Strut Kit – Chopper and Bobber Fabrication Parts

    Curved Fender Strut Kit

    CFSK
    $30.00
    Curved Fender Strut Kit – DIY Custom Motorcycle Fender Struts Our Curved Fender Strut Kit gives you everything you need to build your own custom fender struts with a clean, professional look. Designed with a 10" radius curve, these struts provide a...
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  • 5" Pipe Bomb Oil Tank Kit with domed ends, filler bung, and NPT fittings Pipe Bomb Oil Tank Kit 5" Diameter – DIY Weld-Together Motorcycle Oil Tank Parts

    "Pipe Bomb" Oil Tank Kit 5" Dia

    PBOTK5
    $68.00 - $91.00
    Pipe Bomb Oil Tank Kit – 5" Diameter, DIY Weld-Together Oil Tank Build your own custom motorcycle oil tank with our Pipe Bomb Oil Tank Kit – 5" Diameter. This DIY weld-together kit includes everything you need to fabricate a fully functional...
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  • Straight Fender Strut Kit with round bar, bungs, and hardware Solid 1/2" round bar for custom fender struts

    Straight Fender Strut Kit

    SFSK
    $27.00
    Straight Fender Strut Kit – DIY Custom Motorcycle Fender Mounting Solution Build strong, clean, and custom-fit fender struts with our Straight Fender Strut Kit, designed for riders and fabricators who want a professional look without relying on OEM...
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  • loop style fender strut diy weld together kit triumph bsa hoop

    Triumph BSA Strut Kit

    TFSK
    $30.00
    Triumph BSA Fender Strut Kit This is weld together kit with all the parts needed to create your own custom fender strut. Made just for those using a smaller 5" wide fender common to Triumph and BSA builds. The kit includes: 2ea 5/8 O.D. counterbored...
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  • Custom motorcycle oil tank fabrication kit with steel tubing and end caps DIY motorcycle oil tank kit – Bung King F’ Bomb Oil Tank

    F' Bomb Oil Tank Kit 5"

    FBOTK5
    $55.00
    F' Bomb Oil Tank Kit – DIY Custom Motorcycle Fabrication Kit Build your own custom oil tank with the F’ Bomb Oil Tank Kit, designed for fabricators and riders who want a one-of-a-kind look for their motorcycle. This weld-together kit gives...
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  • universal weld on bung mounting kit to mount fenders and oil tanks in mild steel tapped to 5/16" and 3/8" x 16 bolt sizes thread universal weld on bung mounting kit to mount fenders and oil tanks in mild steel tapped to 5/16" and 3/8" x 16 bolt sizes thread

    Universal Mount Set

    UMK
    $14.00
    Universal Mount Kit Thses universal weld on mounts can be used to mount just about anything we commony use them to mount fenders oil tanks and exhaust systems. Made from 3/4" diameter cold rolled mild steel. Each kit includes: 2 counterbored bungs 2...
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  • Pipe Bomb Oil Tank Kit 6" Diameter – DIY Weld-Together Motorcycle Oil Tank Parts Custom motorcycle DIY oil tank kit – 6" diameter pipe bomb tank with domed caps

    "Pipe Bomb" Oil Tank Kit 6" Dia

    PBOTK6
    $75.00 - $98.00
    Pipe Bomb Oil Tank Kit – 6" Diameter, DIY Weld-Together Oil Tank Build your own custom motorcycle oil tank with our Pipe Bomb Oil Tank Kit – 6" Diameter. This DIY weld-together kit includes everything you need to fabricate a fully functional...
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  • F’ Bomb Oil Tank Kit with flanged end caps weld-together motorcycle oil tank Custom motorcycle oil tank kit with raised lip flanged end caps

    F' Bomb Flanged Cap Oil Tank 5" dia

    FBOTC5
    $62.50
    F' Bomb Oil Tank Kit with Flanged End Caps – Custom Motorcycle Fabrication Kit Take your custom build to the next level with the F’ Bomb Oil Tank Kit featuring flanged end caps. Designed for fabricators and riders who want both function and...
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  • Oil tank filler cap and bung kit with three 1/8" NPT fittings – mild steel version Complete oil tank bung kit with filler cap, vent, feed, and return fittings – made in USA

    Oil Tank Bung Kit

    OTBK
    $32.50 - $38.50
    Oil Tank Filler Cap & Bung Kit with (3) 1/8" NPT Bungs – Complete Weld-In Kit Build your custom oil tank the right way with this all-in-one weld-in bung kit. Designed for both performance and clean looks, this kit provides every threaded...
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  • Custom weld on steel oil tank domed end cap in 5-inch or 6-inch size

    Domed Oil Tank Endcaps

    OTEC
    $16.50 - $20.50
    Domed Oil Tank Endcaps – 5" & 6" Steel End Caps for Custom Oil Tanks Our Domed Oil Tank Endcaps are the same high-quality end caps we’ve been using for years in our popular Pipe Bomb Oil Tank Kits, now available separately for your custom...
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  • 5 and 6 Inch Mild steel tubing by the inch for DIY oil tank fabrication

    Oil Tank Tubing 5" and 6"

    OTtube
    $2.45
    Oil Tank Tubing by the Inch – 5" & 6" Mild Steel Build your own custom oil tank with our high-quality mild steel tubing, now available by the inch. This is the same 14-gauge tubing we use in our popular Pipe Bomb Oil Tank Kits, offered...
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  • 14-gauge mild steel flat round endcap for oil tank fabrication Flat round steel oil tank endcap – 5 inch diameter

    Flat Round Oil Tank Endcaps

    FROTEC
    $4.00
    Flat Round Oil Tank Endcaps – 5" & 6" Mild Steel Build your own custom oil tank or reservoir with our Flat Round Oil Tank Endcaps, designed to provide a precise, clean finish for your fabrication project. Made from durable 14-gauge mild steel,...
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    $4.00
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  • Weld-on flanged round oil tank endcap for 5" or 6" tube

    Flanged Oil Tank Endcap

    FOTEC
    $6.00
    Upgrade your custom oil tank build with our Flanged Oil Tank Endcaps, the same style we use in our popular Flanged F-Bomb Oil Tank Kits. Each cap is precision-formed in our custom die plate, after being cut on our CNC laser to ensure a perfect fit for 5"...
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  • WELD TOGETHER DIY T-BAR KIT 1" DIAMETER

    T-Bar Kit

    TbarKIT
    $65.00
    Weld Together T-bar Kit This kit is all the parts you need to make your own 1" diameter set of t-bars. Simply trim the pre-coped uprights to your desired length, weld in the threaded riser spuds and weld on the cross bar to your desired angle. The upper...
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  • rubber isolator rubber mount tank mount universal with weld in bungs gas tank oil tank rubber isolator rubber mount tank mount universal with weld in bungs gas tank oil tank

    Rubber Tank Mount Kit

    RTMK
    $24.00 - $41.00
    Rubber Tank Mount Kit These mounts are most commonly used for mounting gas tanks and oil tanks. The rubber isolaters help reduce the risk of cracks developing in your fluid container. They use the common flat side tank mount rubbers that can be found at...
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Bung King offers a wide range of bolt-on and weld-on kits for Harley-Davidson motorcycles and custom builds — perfect for Dyna, Sportster, Softail, FXR models, as well as choppers, rigid frames, and bobbers. From crash bar kits and fender strut kits to frame sliders and gauge relocation kits, each product is designed for strength, performance, and easy installation. Our kits include all necessary hardware and are made in the USA using high-quality materials. Whether you're building a stripped-down bobber, modifying a rigid chopper, or upgrading your Harley for the street or stunt use, Bung King kits deliver durability and clean style trusted by riders and custom builders alike.