M12x1.25 to AN-4 SS

This TightFit M12x1.25 to AN-4 SS adapter is CNC machined from stainless steel and finished in raw form. It’s a metric thread-to-flare adapter for OE-style ports, suited to OE fuel, oil and coolant port connections. Like every TightFit fitting, it’s manufactured to strict tolerance control and backed by our 2-year limited warranty.