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Reference: 164

Brand: WELDRACINGPARTS

AN 16 aluminium

Weld-on AN 16 aluminum bung, perfect for use on fuel tanks, radiators, oil reservoirs or aluminum tubing. Designed to work with AN16 flare fittings, it allows a direct threaded connection with no adapters needed. Its compact form makes it easy to install in tight areas. Lightweight, reliable and easy to weld, ideal for high-volume fluid systems in...

Price 11.02 €
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Reference: 165

Brand: WELDRACINGPARTS

AN 20 aluminium

Weld-on AN 20 aluminum bung, perfect for use on fuel tanks, radiators, oil reservoirs or aluminum tubing. Designed to work with AN20 flare fittings, it allows a direct threaded connection with no adapters needed. Its compact form makes it easy to install in tight areas. Lightweight, reliable and easy to weld, ideal for high-flow systems in modified...

Price 13.13 €
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Reference: 48

Brand: WELDRACINGPARTS

AN 10 stainless steel hexagonal male

AN 10 stainless steel hexagonal male fitting weldable, designed for high-performance applications such as fuel tanks, oil tanks, or metal components. Its Dash 4 flared connection ensures a perfect fit and high resistance, ideal for demanding welding tasks. This high-quality fitting is compatible with Goodridge-type systems, offering durability and...

Price 13.57 € Regular price 14.07 €
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Reference: 477

Brand: WELDRACINGPARTS

AN 10 stainless steel male

AN 10 stainless steel round male fitting weldable, designed for high-performance applications such as fuel tanks, oil tanks, or metal components. Its flared center locator connection makes welding positioning easier and ensures a perfect fit and high resistance, ideal for demanding welding tasks. This high-quality fitting is compatible with Goodridge-type...

Price 15.75 €
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Reference: 478

Brand: WELDRACINGPARTS

AN 12 stainless steel male

AN 12 stainless steel round male fitting weldable, designed for high-performance applications such as fuel tanks, oil tanks, or metal components. Its flared center locator connection makes welding positioning easier and ensures a perfect fit and high resistance, ideal for demanding welding tasks. This high-quality fitting is compatible with Goodridge-type...

Price 24.15 €
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Reference: 479

Brand: WELDRACINGPARTS

AN 16 stainless steel male

AN 16 stainless steel round male fitting weldable, designed for high-performance applications such as fuel tanks, oil tanks, or metal components. Its flared center locator connection makes welding positioning easier and ensures a perfect fit and high resistance, ideal for demanding welding tasks. This high-quality fitting is compatible with Goodridge-type...

Price 30.46 €
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Reference: 480

Brand: WELDRACINGPARTS

AN 20 stainless steel male

AN 20 stainless steel round male fitting weldable, designed for high-performance applications such as fuel tanks, oil tanks, or metal components. Its flared center locator connection makes welding positioning easier and ensures a perfect fit and high resistance, ideal for demanding welding tasks. This high-quality fitting is compatible with Goodridge-type...

Price 40.95 €
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Weld-on bungs for custom lines in high-performance builds

If you're building a coolant, oil, or air system and need a solid base for welding, this is exactly what you're looking for. Our weld-on bungs are made to simplify your work when every connection matters.

Available materials

Aluminum: lightweight, ideal for water or air circuits.
Stainless steel: heat and pressure resistant, perfect for critical areas.

Compatible with AN fittings

Many of our weld-on bungs are designed to work directly with AN fittings, making it easy to assemble professional-grade lines with a secure seal.

Thread types available

Metric: M10x1.0, M12x1.5, etc.
UNF and UNC: perfect for AN systems and American or imported engine setups.
Whitworth: available for specific use cases when needed.

Common applications

• Inlet and outlet ports on tanks, radiators, or caps.
• Sensor, bleed, or auxiliary line installation.
• Rigid or flexible lines for oil, water, or air systems.

Why choose Weldracingparts

• Real stock with ready-to-weld sizes available.
• We sell what we use – every part is tested in our own builds.
• We can help if you need a custom bung or can't find the size you're after.

If you're looking for weld-on bungs compatible with AN fittings, easy to weld and built from the right materials, you're in the right place.