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Fittings & Hoses
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Performance Automotive Hoses & Fittings
Get your fuel and just about any other fluids where they need to go! We have fittings, valves, hose ends, and plugs in a wide assortment of sizes, materials, and finishes,...
Get your fuel and just about any other fluids where they need to go! We have fittings, valves, hose ends, and plugs in a wide assortment of sizes, materials, and finishes, plus hoses to match in materials ranging from rubber to braided stainless steel. We’ve got complete fuel line kits, transmission fluid lines, radiator hoses, clamps, brackets, and A/C and heat plumbing—grab everything you need at once! While you’re at it, pick up some specialized AN fitting tools as well.
Get your fuel and just about any other fluids where they need to go! We have fittings, valves, hose ends, and plugs in a wide assortment of sizes, materials, and finishes, plus hoses to match in materials ranging from rubber to braided stainless steel. We’ve got complete fuel line kits, transmission fluid lines, radiator hoses, clamps, brackets, and A/C and heat plumbing—grab everything you need at once! While you’re at it, pick up some specialized AN fitting tools as well.
Showing In Stock Items. Show All 140 Items.
Vibrant Performance J-Style Oxygen Sensor Fittings
Vibrant Performance J-style oxygen sensor fittings help you to complete your project with quality bungs and great value. When clearance under the vehicle is an issue, their "J" shape allows for an easier installation, by placing the sensor parallel to the exhaust pipe. Vibrant sensor fittings are crafted from T304 stainless steel.
( 17 )
$32.50
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$40.99
Summit Racing™ Oxygen Sensor Bungs
Summit Racing™ Oxygen Sensor bungs or "O2 Bungs" are what you need to put oxygen sensors in your exhaust when retrofitting fuel injection or test equipment to the exhaust of your vehicle. They weld in and come in mild steel or stainless.
( 79 )
$3.99
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$10.99
Vibrant Performance Standard Oxygen Sensor Fittings
Vibrant Performance oxygen sensor fittings help you to complete your project with quality bungs and great value. All of their standard bungs accept all standard O2 sensors and are crafted from either T304 or mild steel. Plus, they're available individually or in bulk. Choose from the assortment of standard oxygen sensor fittings from Vibrant Performance to finish your job right.
( 106 )
$3.29
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$279.99
ICT Billet Weld-In Bungs and Fittings
ICT Billet weld-in bungs and fittings enable the installation of various sensors, fittings, or barbs. ICT Billet weld-in bungs and fittings will assist in making your job a success. Order the size, material, and attachment options needed for your application.
( 61 )
$10.99
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$29.99
Summit Racing™ Weld-In Bungs
If you'd rather build it than buy it, Summit Racing™ has you covered with our weld-in bungs. Whether it's a fuel cell, catch can, or oil tank, we offer these quality weld-in bungs in multiple sizes and materials to fit your fabricating needs.
( 73 )
$3.99
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$9.99
Vibrant Performance Weld Bungs
Vibrant AN and NPT weld bungs are ideal to help you with your custom plumbing project. They are manufactured from quality materials--mild steel or T6061 billet aluminum--and are available in female NPT, male AN, and female AN thread and O.D. sizes to suit your application--and your budget--perfectly. Let Vibrant help you with aluminum radiators, oil pans, custom tank fabrication, or any other project that requires custom plumbing.
( 42 )
$3.79
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$54.99
NGK Weld-in Oxygen Sensor Bungs and Plugs
NGK weld in oxygen sensor bungs and plugs are just what you need to install an oxygen sensor in your vehicle. These are designed to be welded anywhere in the exhaust system, and includes a plug to seal the boss whenever the sensor is removed.
( 22 )
$11.99
Earl's Performance Weld-In Oxygen Sensor Bungs
Earl's oxygen sensor weld fittings are the ideal way to add a sensor when converting to EFI or adding a wideband air/fuel gauge for tuning carbureted engines. The weld fittings are available in steel or stainless steel to match your exhaust system. The thread size is 18mm x 1.5 and fit most OEM and aftermarket oxygen sensors. They feature a recessed step for easy installation by drilling a hole in the exhaust system and welding the fitting in place.
( 13 )
$11.46
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$15.79
Hedman Weld-In O2 Sensor Bungs
When doing a custom installation or fabricating your own header setup, make sure you use the right components. Hedman weld-in O2 sensor bungs help make your job easier, and because they're from Hedman, you can be sure that they're top quality.
( 8 )
$7.99
On Sale
Moroso Weld-In Bungs
Moroso weld-in bungs are available in aluminum, steel, or stainless steel. They can be welded to valve covers, holding tanks, cylinder heads, oil pans, or wherever an NPT fitting is needed.
( 7 )
$12.99
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$166.99
$11.69
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$150.29
Redhorse Performance 972 Series Weld-On Bungs
Plumbing your vehicle properly will use many different fittings. Redhorse Performance 972 Series weld-on bungs feature lightweight, unfinished raw aluminum construction, offering your project performance and style. RHP's 972 Series compact weld-on AN male adapters are available in several sizes. Choose the one or ones best suited to your task.
( 2 )
$6.04
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$15.26
Rhodes Race Cars Weld-In Bungs
Rhodes Race Cars weld-in bungs are for those who would rather build it than buy it. These quality RRC aluminum fittings are offered in multiple sizes to fit your fabricating needs. Whether it's a fuel cell, catch can, or oil tank, Rhodes Race Cars weld-in bungs will assist in your choice to do it yourself.
( 19 )
$2.99
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$8.99
Manufacturer Rebate
Innovate Weld-In Bungs
Innovate Technology weld-in bungs are available in steel and stainless steel. They are also available in several sizes to suit your needs.
( 28 )
$8.99
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$13.99
Flowtech Weld-In O2 Sensor Bungs
Flowtech offers these weld-in O2 sensor bungs for custom installations. These high-quality emissions accessories work with your other Flowtech accessories to make your header installation a success.
( 6 )
$22.50
Speedflow Weld-In Bungs
Speedflow offers weld-in bungs in a variety of types, materials, and thread sizes—male and female. Order the fittings needed for your applications.
( 3 )
$4.34
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$40.63
ARP Weld Bungs
ARP offers these premium-quality weld-in bungs for a variety of uses. They're CNC-machined from 6061 solid aluminum billet or 1018 mild steel and are great for oil or fuel tanks, radiators, valve covers, manifolds, and rear axle housings. These bungs are available in your choice of sizes to suit your needs.
( 29 )
$9.99
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$36.99
Racepak Weld-In Bungs
Racepak weld-in bungs offer quality made from steel and stainless steel. For EGT and air/fuel sensors, these weldments will create a place for your sensors and probes.
Not Yet Reviewed
$11.22
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$16.14
Lowdoller Motorsports Weld-In Bung Fittings
Lowdoller Motorsports weld-in bung fittings offer superior durability, precision, and application versatility for custom fabrication in automotive and racing projects. Their product line includes options made from corrosion-resistant 316 stainless steel and lightweight 6061 billet aluminum, designed for robust and reliable connections. These bung fittings are designed for a permanent, high-strength attachment, which is a significant advantage over less-secure mounting methods. Select the bung fittings for your application.
Not Yet Reviewed
$4.99
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$10.99
Fragola Performance Systems Weld-In Bungs
Fragola Performance Systems has the weld-in bungs that you need for your project! Made from high-quality materials, these bungs are offered in a wide variety of sizes to suit your needs.
( 30 )
$3.99
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$30.99
Vintage Air Stainless Hardline Parts
Vintage Air offers these parts for use when plumbing your hardline cooling system. From fittings to nuts to adapters, Vintage Air has your hardline hardware needs covered.
( 8 )
$13.99
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$21.99
Trick Flow® Weld-in Bung Fittings
Trick Flow® weld-in bung fittings are manufactured from premium billet aluminum. These components can deliver great performance in high style, and will add the finishing touch to your engine compartment. Trick Flow® weld-in bulkheads come in varying sizes to fit most applications.
( 8 )
$4.99
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$8.99
Stainless Works Weld-In Oxygen Sensor Bungs
Have you ever needed to install an oxygen sensor and couldn't figure out how to do it? Install it the easy way with these weld-in oxygen sensor bungs from Stainless Works. They're manufactured from high-quality stainless steel, so you can use them in any Stainless Works system. The Stainless Works weld-in oxygen sensor bungs accept a standard 18mm threaded oxygen sensor, so they're perfect for use in today's high performance applications.
( 3 )
$12.35
Manufacturer Rebate
Innovate O2 Bung Adapters
Innovate O2 bung adapters let you fit your OE bung with a full size thread O2 sensor. Does your import motorcycle or ATV come with a 12mm O2 sensor? With these adapters, you can utilize Innovate data loggers and gauges without welding in a new bung. With these stainless steel adapters, you mount the O2 sensor at a 45 degree angle, and the nut allows you to point the adapter in any direction to gain the most clearance. A copper sealing washer is included. Don't weld in a new bung--Innovate with O2 bung adapters.
( 1 )
$35.99
Canton Racing Weld-In Bungs
Canton Racing has weld-in bungs to fit your purpose. These bungs are made of quality steel and aluminum in a variety of thread sizes, including AN fitting bungs, bungs with plugs, port bungs, and a 1 in. NPT steel bung and plug for use as an inspection plug.
( 15 )
$5.00
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$13.50
