SKU: VIB10231
UPC: 690092138271
MPN: 10231
The Union Adapter Fitting -4AN x -4AN (MPN 10231) from VIBRANT PERFORMANCE is an essential AN-rated adapter designed for custom fuel, coolant, and hydraulic system plumbing in performance and modified vehicles. This fitting bridges two -4AN male connections, making it indispensable when routing high-pressure lines in engine bay configurations where space or component placement requires a direct coupling solution.
Machined from aerospace-grade aluminum, the -4AN union adapter delivers robust thread engagement and precise sealing geometry compatible with standard AN fittings and hose ends rated for -4AN specification. The compact design allows integration into tight engine compartments without interference, while the dual -4AN male ports accept both crimped hose ends and welded fittings common in performance applications.
Mechanics and fabricators installing custom fuel rails, surge tanks, turbo intercooler loops, or auxiliary coolant systems rely on this fitting for dependable line routing and leak-free connections under demanding conditions. VIBRANT PERFORMANCE's manufacturing standards ensure concentricity and thread accuracy, critical for preventing micro-leaks that can compromise fuel delivery, cooling efficiency, or hydraulic response in turbocharged, supercharged, or naturally aspirated builds.
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