SKU: VIB12547
UPC: 690092168407
MPN: 12547
The aluminum weld fitting with O-rings for 3-1/2in tubing is engineered for high-pressure fluid transfer systems requiring dependable leak-free connections. Manufactured by VIBRANT PERFORMANCE under part number 12547, this fitting assembly serves automotive cooling, fuel, and pneumatic applications where durability and precision are non-negotiable. Whether upgrading custom cooling loops, restoring classic fuel systems, or building performance hydraulic assemblies, this weld fitting provides the secure clamping action demanded by professionals and enthusiasts alike.
Constructed from lightweight aluminum, this fitting minimizes overall system weight while maintaining structural integrity under pressure cycling. The integrated O-ring design eliminates separate gasket installation, reducing assembly time and potential leak points. The 3-1/2-inch outer diameter specification accommodates standard tubing sizes used in modern performance platforms, while the weld-on configuration allows permanent, vibration-resistant installation. The aluminum construction resists corrosion in exposed engine bay environments, and the natural finish integrates seamlessly with both OEM and aftermarket piping systems.
This fitting benefits technicians, engine builders, and motorsport enthusiasts installing custom fuel, coolant, or compressed air systems. Installation requires welding to the tubing body, making it ideal for permanent installations where vibration resistance is critical—particularly in turbocharged engines, high-performance cooling circuits, and off-road applications. The pair configuration allows users to standardize connection points across multiple system locations. Verify tubing OD compatibility before ordering to ensure proper ferrule sealing and clamp engagement.
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