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SKU: 11250 | UPC: 690092191139
Vibrant -4 AN Male Weld Bung (3/4in Flange OD) - Mild Steel
Vibrant Performance weld bungs provide a reliable connection point for custom automotive plumbing projects. This -4 AN male bung fits seamlessly into aluminum radiators oil pans and fabricated tanks for leak-free performance. Precision design ensures secure welding and compatibility with standard AN hose fittings in any custom fabrication setup.
Key Features
- -4 AN Male Thread: Standard 7/16-20 UNF thread matches AN-4 hose ends for straightforward plumbing connections
- 3/4in Flange OD: 0.75 inch outer diameter flange offers generous surface area for strong welds on thin materials
- Mild Steel Construction: Durable low-carbon steel welds easily to steel aluminum or other metals without cracking
- Precision Machined: Tight tolerances prevent leaks and ensure consistent fit with AN fittings across high-pressure applications
- Versatile Application: Ideal for radiators oil pans catch cans fuel tanks and any custom performance plumbing need
Product Notes
- Inspect and clean mating surfaces before welding to achieve optimal seal
- Compatible with mild steel aluminum and stainless steel substrates
- Packaged securely for protection during transit
Installation Notes
- Professional installation recommended.
- Tack weld in place then fully weld around flange using TIG or MIG process
- Pair with AN-4 hose ends and clamps for complete assembly
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Fabrication | Radiators Oil Pans Tanks |
Why Choose Vibrant?
- Established leader in performance fabrication components
- Consistent quality from CNC machining processes
- Proven reliability in racing and street applications
Frequently Asked Questions
-
Q: What AN size hose fits this bung?
A: Designed for -4 AN hose with 7/16-20 male thread compatibility for secure high-flow connections -
Q: Can this weld to aluminum?
A: Yes mild steel flange works with aluminum using proper welding techniques like TIG for clean joints -
Q: Is professional welding required?
A: Recommended for best results though experienced DIY welders can install with care
Shipping & Handling
- Method: USPS First Class or UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Compact poly bag inside protective envelope 2in x 3in x 0.5in
- Weight: 0.05 lbs
Bungs
Bungs parts and accessories are stocked at Black Ops Auto Works for street builds, track cars, trucks, and custom fabrication. Shop O2 sensor bungs, wideband bungs, AN weld bungs, coolant bungs, oil pressure ports, threaded bungs, stand-off bungs, weld fittings, sensor plugs, tube bungs, frame plugs, and fabrication hardware with application details for the systems and platforms that need them. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 123 Bungs SKUs across sensor ports, fluid fittings, exhaust hardware, threaded fabrication parts, and installation accessories. What This Bungs Collection Covers Bungs are weld-on or threaded foundation pieces for custom exhaust, fuel, coolant, oil, intake, chassis, and gauge work. This broad selection includes stainless steel O2 bungs, titanium AN bungs, aluminum stand-off bungs, threaded plugs, sensor ports, and weld fittings for fabricato...
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Fabrication
Shop Fabrication Parts and Materials at Black Ops Auto Works for stainless steel tubing, titanium tubing, aluminum charge piping, mandrel bends, V-band clamps, flanges, merge collectors, AN fittings, PTFE hose kits, braided fuel and oil lines, heat shields, welding supplies, brackets, bungs, and hardware for building custom exhaust systems, turbo plumbing, intercooler piping, and fuel system routing. Start with tubing in stainless, titanium, or aluminum in the right diameter and wall thickness, then add mandrel bends, flanges, V-bands, and clamps to complete the joint work. Black Ops Auto Works carries 5,866 fabrication SKUs from Vibrant Performance, Ticon Industries, Stainless Bros, Radium Engineering, Fragola, DEI, and ATP Turbo. Why Custom Fabrication Custom fabrication solves fitment problems that no universal or pre-bent kit can address. Raw tubing, flanges, and fittings give the fabricator freedom to route exhaust around a turbo, snake charge pipe around accessories, hard-...
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Vibrant
Vibrant Performance parts for custom exhaust, turbo builds, and fabrication projects are stocked at Black Ops Auto Works. Shop clamps, V-band flanges, mandrel bends, silicone couplers, wideband bungs, catalytic converters, resonators, tips, mufflers, oil catch cans, AN fittings, hoses, wastegate flanges, and fuel system fittings for street, race, drift, and off-road builds. Every product is filterable by size, material, and fitting type so the correct part ships the first time. Black Ops Auto Works carries 3,096 Vibrant Performance SKUs across exhaust fabrication, forced induction plumbing, and fuel system hardware. What This Brand Covers Vibrant Performance manufactures exhaust and fabrication parts for DIY custom exhaust, turbo builds, and general fabrication work. The catalog spans stainless mandrel bends and V-band flanges for exhaust construction, silicone couplers and hump hoses for intercooler and intake plumbing, and AN fittings and PTFE hose for fuel and oil systems. Fa...
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