The Vibrant Performance 12733 Adapter Fitting delivers a dependable, precision-engineered solution for connecting -4 AN and 1/4-19 BSPT threaded components in custom or performance automotive plumbing systems. Constructed from high-quality aluminum and finished with a durable black anodized coating, this adapter resists corrosion and maintains strength under demanding thermal and pressure conditions.
Its male AN to male BSPT design allows seamless integration between fittings of different standards, making it ideal for linking fuel, oil, and coolant lines in street or race applications. Compact and lightweight, the 12733 fitting ensures a professional, leak-free seal even in confined engine bays or complex routing environments. Whether performing upgrades, repairs, or full custom installations, Vibrant’s precision-machined adapters ensure reliable connections and consistent performance across fluid systems.
Features:
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Converts -4 AN male to 1/4-19 BSPT male for cross-thread fluid system connections
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CNC-machined aluminum construction for durability and precise fitment
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Black anodized finish resists corrosion, heat, and wear
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Compact design ideal for tight installation spaces
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Suitable for fuel, oil, coolant, and other performance fluid applications
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Ensures consistent, leak-free performance in custom or OEM-style plumbing setups