1/4NPSM to 06AN Pair 4L80E 4L85E Trans

The 1/4NPSM to 06AN Pair 4L80E 4L85E Trans fitting is a specialized adapter designed for transmission builders and performance enthusiasts who are upgrading fuel and coolant line routing on GM's heavy-duty transmissions. This matched pair of fittings is essential for ensuring a secure connection between different thread standards, which helps prevent leaks and maintains reliable pressure delivery.

Each fitting converts 1/4" NPSM (National Pipe Straight Mechanical) ports to -06AN (AN6 metric) lines, making them compatible with standard aluminum braided hoses and crimp end configurations. Redhorse Performance's engineering ensures consistent thread engagement and minimal pressure drop, which are vital for managing fluid temperatures in both street and racing applications.

These fittings are particularly beneficial for serious builders working on 4L80E or 4L85E installations, especially when integrating aftermarket cooling enhancements. The 1/4NPSM port size is commonly found on transmission cooler inlets and outlets, making this pair a reliable choice for those looking to enhance their transmission cooler systems.