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A quality weld-in bung is a smart way to add an o2 sensor, petcock drain, or plumbing fitting to automotive components like exhaust tubing, oil pans, fuel cells, or...
A quality weld-in bung is a smart way to add an o2 sensor, petcock drain, or plumbing fitting to automotive components like exhaust tubing, oil pans, fuel cells, or intake manifolds. And weld-in bungs are downright essential if you’re building a custom exhaust and need to add an oxygen sensor anywhere in the header tubes or exhaust system.
Better yet, if you’re drilling a hole in your oil pan or fuel cell to add a fitting for something like a drain, fuel line, or an external oil cooler, a weld-in bung can save a ton of time and hassle over cutting, drilling, and tapping one yourself. Weld-in bungs are also handy for folks...
A quality weld-in bung is a smart way to add an o2 sensor, petcock drain, or plumbing fitting to automotive components like exhaust tubing, oil pans, fuel cells, or intake manifolds. And weld-in bungs are downright essential if you’re building a custom exhaust and need to add an oxygen sensor anywhere in the header tubes or exhaust system.
Better yet, if you’re drilling a hole in your oil pan or fuel cell to add a fitting for something like a drain, fuel line, or an external oil cooler, a weld-in bung can save a ton of time and hassle over cutting, drilling, and tapping one yourself. Weld-in bungs are also handy for folks building custom nitrous systems, where you may need to add an assortment of sensors and injectors to ensure it operates correctly.
Whether your want an aluminum bung or a steel bung, a weld-in threaded bung, or metric weld bung, Summit Racing carries plenty of weld-in options in a range of sizes and threads. From AN and metric thread to trusty NPT, you can find a weld-in bung that’s perfect for your precise need. And having a wide selection of weld-in bungs is vital, because weld-on bungs are ideal for a lot of critical applications, including oxygen sensors, along with any sort of plumbing for external fluid coolers, turbo and supercharger oiling systems, air conditioning lines, and gauges. But again, if you’re here, there’s a good chance it’s because you need a weld-in bung for an oxygen sensor. And for that, we’ve got your covered.
Even if it’s not for an o2 sensor, you can find the best weld-in bung for your needs by using Summit Racing’s handy search filters to narrow down your results. Adjust your filters by vital search parameters like the weld-in bung’s thread pitch, outside diameter, and material. There are hundreds of weld-in bung options to choose from, so there’s a very, very good chance you’ll find the right weld-in fitting or sensor bung for your ride right here at Summit Racing.
Showing In Stock Items. Show All 34 Items.
Fitting, Bung, Weld-In, Female 1/8 in. NPT, Aluminum, Each
Part Number: SUM-220070
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
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Fitting, Bung, Weld-In, Female 3/8 in. NPT, Aluminum, Each
Part Number: SUM-220072
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -16AN, Male Threads, Each
Part Number: SUM-2200616
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Female 1/2 in. NPT, Aluminum, Each
Part Number: SUM-220073
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -12AN, Male Threads, Each
Part Number: SUM-2200612
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Female 1/4 in. NPT, Aluminum, Each
Part Number: SUM-220071
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -10AN, Male Threads, Each
Part Number: SUM-2200610
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -6AN, Male Threads, Each
Part Number: SUM-2200606
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, 5/8 in. Hose Barb, Aluminum, Each
Part Number: SUM-220018
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -20AN, Male Threads, Each
Part Number: SUM-2200620
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -8AN, Male Threads, Each
Part Number: SUM-2200608
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, 6 AN, Male Threads. Steel, Each
Part Number: SUM-220023
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, 3/8 in. Hose Barb, Aluminum, Each
Part Number: SUM-220016
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, 8 AN, Male Threads. Steel, Each
Part Number: SUM-220024
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, 1/2 in. Hose Barb, Aluminum, Each
Part Number: SUM-220017
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Female 3/4 in. NPT, Aluminum, Each
Part Number: SUM-220074
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -4AN, Male Threads, Each
Part Number: SUM-2200604
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-On, 1/2 in.-20 Female Threads, Aluminum, Oil Drain, Each
Part Number: SUM-2200650
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-in, Aluminum, -3AN, Male Threads, Each
Part Number: SUM-2200603
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Female 1/8 in. NPT, Aluminum, Set of 6
Part Number: BPK-1094
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Male Threads, Aluminum, 16 AN, Set of 6
Part Number: BPK-1093
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Female 3/8 in. NPT, Aluminum, Set of 6
Part Number: BPK-1096
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Male Threads, Aluminum, 12 AN, Set of 6
Part Number: BPK-1092
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Male Threads, Aluminum, 10 AN, Set of 6
Part Number: BPK-1091
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Bung, Weld-In, Female 1/4 in. NPT, Aluminum, Set of 6
Part Number: BPK-1095
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
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