Fathouse Performance Heater Core Firewall AN Adapter Fitting; Pair (15-26 Mustang)

Custom AN Adapter Solution. The Fathouse Performance Heater Core Firewall AN Adapter Fitting Pair provides a reliable, adaptable connection for custom 10AN heater core firewall lines. These fittings are essential for intake manifold or supercharger installations, enabling seamless integration while maintaining proper coolant flow and integrity.

Construction and Appearance. Made in the USA from durable materials, these fittings feature a quality finish that helps ensure longevity. The design maintains OEM compatibility by reusing existing clips, o-rings, and bushings for secure, leak-free connections.

Installation. Installation is straightforward, using factory hardware and mounting points to help maintain structural integrity and simplify the upgrade process.

Application. Specifically engineered to fit Mustang models from 2015 to 2026, these adapter fittings accommodate custom firewall heater line setups required by aftermarket intake or supercharger configurations.

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