M12x1.25 to AN-4

This TightFit M12x1.25 to AN-4 adapter is CNC machined from billet aluminium and finished in bright polished black anodising. 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.