Genuine OEM Fisher Western 49567 2 Port Isolation Plow Module The Genuine OEM Fisher Western 49567 2 Port Isolation Plow Module is a high-quality replacement part specifically designed for Fisher snow plows. With a direct fitment type and only one piece included, this isolation module is a crucial component for maintaining the functionality of your snow plow system. Manufactured by Fisher themselves, you can trust in the reliability and compatibility of this part for your vehicle.