The BRT3 HVAC Belt Tool is a precision-engineered belt installation tool designed specifically for Polaris Northstar HVAC models that use a serpentine belt to drive the A/C compressor and alternator. These Polaris HVAC systems do not use a belt tensioner, making proper belt installation critical and requiring the correct model-specific HVAC belt tool.This Polaris HVAC belt installation tool is designed to safely guide and stretch the serpentine belt onto the pulleys without damaging the belt, pulley, or surrounding components. After routing the new belt through the pulleys, the belt is installed onto the tool and placed over the A/C pump pulley. As the tool is rotated, it smoothly guides the belt into position for a correct and secure installation. Complete instructions are included to ensure proper use.Manufactured in the USA from high-quality billet steel, the BRT3 is built for strength, precision, and long-term durability. The plated finish provides added corrosion resistance for years of reliable service. Offering professional-grade performance at a lower cost than the OEM Polaris belt tool, the BRT3 is an ideal solution for both professional technicians and DIY riders. Replacement pins are available to extend the life of the tool.