The Grayston FIA Resistor is a direct replacement for the GE55 Grayston FIA Master Cut-Off Switch, designed to protect your alternator from power surges when the engine is shut off at high RPM. This essential component ensures the proper function of your master switch by completing the circuit, preventing potential damage to your electrical system.

Key Features:
Protects Alternator – Prevents power surges when cutting off the engine at high RPM
Direct Replacement – Designed for FIA Master Cut-Off Switches
Ready to Install – Supplied prepped for soldering into the circuit
Essential Spare Part – A must-have backup for your motorsport spares kit