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Weld-on bungs in aluminum or stainless steel, ideal for building coolant, oil, or air lines in high-performance cars. Designed for easy welding and to fit standard sizes like 1", 1.25", or 1.5" tubes. If you’re looking for reliable parts to build your own setups, at Weldracingparts we’ve got them in stock and ready to ship. We only sell weld-on bungs that we’d use in our own builds.
Subcategories
Reference: 36
Brand: WELDRACINGPARTS
The weldable aluminum bushing 6082 T6 is ideal for making water tubes, radiators, or for mounting aluminum parts. Made from aluminum 6082 T6, it offers high strength and durability, withstanding extreme conditions. Perfect for welding and custom fabrication projects, it allows easy integration into systems requiring reliability and long-term strength,...
Reference: 910
Brand: WELDRACINGPARTS
The Weld On weldable aluminium 3/8" hose barb is made from high-quality aluminium, fully weldable, with a bottom recess for perfect centering and easy installation. Ideal for high-performance automotive and motorsport projects, it ensures secure connections and clean, precise, long-lasting welds.
Reference: 50
Brand: WELDRACINGPARTS
Weld-on AN 4 aluminum bung, ideal for installation on fuel tanks, radiators, oil reservoirs or aluminum tubing. Compatible with 1/4” AN flare fittings, it provides a direct and secure threaded connection without adapters. Its compact size makes it easy to install even in tight spaces. Durable, lightweight and weld-friendly, perfect for auxiliary systems...
Reference: 45
Brand: WELDRACINGPARTS
Weld-on AN 6 aluminum bung, ideal for installation on fuel tanks, radiators, oil reservoirs or aluminum tubing. Compatible with 3/8” AN flare fittings, it provides a direct and secure threaded connection without adapters. Its compact size makes it easy to install even in tight spaces. Durable, lightweight and weld-friendly, perfect for auxiliary systems...
Reference: 76
Brand: WELDRACINGPARTS
Weld-on AN 8 aluminum bung, perfect for installation on fuel tanks, radiators, oil reservoirs or aluminum tubing. Designed to fit AN8 flare fittings, it allows a direct threaded connection without adapters. Its compact shape makes it easy to mount in tight areas. Lightweight, strong and easy to weld—ideal for higher flow lines in modified cars and...
Reference: 77
Brand: WELDRACINGPARTS
Weld-on AN 10 aluminum bung, perfect for use on fuel tanks, radiators, oil reservoirs or aluminum lines. Designed to work with AN10 flare fittings, it enables a direct threaded connection with no adapters needed. Its compact design makes it easy to install in tight spots. Reliable, lightweight and easy to weld, ideal for high-flow setups in modified...
Reference: 481
Brand: WELDRACINGPARTS
AN 3 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...
Reference: 46
Brand: WELDRACINGPARTS
AN 4 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...
Reference: 475
Brand: WELDRACINGPARTS
AN 4 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...
Reference: 78
Brand: WELDRACINGPARTS
Weld-on AN 12 aluminum bung, perfect for use on fuel tanks, radiators, oil reservoirs or aluminum tubing. Designed to work with AN12 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 modified...
Reference: 49
Brand: WELDRACINGPARTS
AN 6 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...
Reference: 476
Brand: WELDRACINGPARTS
AN 8 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...
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.
• Aluminum: lightweight, ideal for water or air circuits.
• Stainless steel: heat and pressure resistant, perfect for critical areas.
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.
• 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.
• 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.
• 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.
