Carrier KR11AZ606 Blower Pulley

The Carrier KR11AZ606 Blower Pulley is a critical OEM replacement part engineered for high-demand commercial and industrial HVAC applications. This 5.6-inch diameter pulley features a 5/8-inch bore and is designed for precise fixed-pitch power transmission between the blower motor and the fan assembly. Constructed from high-grade steel, it supports 4L, A, and B groove belts, ensuring versatile compatibility with various belt-driven systems. By maintaining exact tension and alignment, the KR11AZ606 minimizes vibration and reduces mechanical stress on the motor bearings, promoting long-term HVAC system efficiency. It is a direct fit for numerous Carrier, Bryant, and Payne models, including the 48KCDA041A through 50TCQA076A series. Whether you are performing routine maintenance or a critical repair, utilizing factory authorized parts like this blower pulley ensures the air distribution system maintains peak airflow performance without the risk of slippage or premature wear found in generic alternatives.

• Precision Machined: The 5.6" diameter and 5/8" bore provide an exact fit for Carrier blower motors, eliminating the need for shaft modifications.
• Multi-Groove Compatibility: Designed to accommodate 4L, A, and B section V-belts, offering flexibility for different HVAC motor pulley setups.
• Reduced Vibration: Balanced construction ensures smooth rotation, protecting the blower assembly from resonant noise and structural fatigue.
• OEM Standards: Engineered as a genuine Factory Authorized Part to meet original equipment specifications for torque and rotational speed.

• What belt sizes are compatible with the KR11AZ606? This pulley is designed for 4L, A, and B groove designations, making it a versatile choice for standard V-belt transmissions.
• Is this a fixed or adjustable pulley? The KR11AZ606 is a fixed-pitch blower pulley, providing a constant drive ratio for stable airflow delivery.
• Which HVAC brands does this part fit? While manufactured by Carrier, this part is a standard replacement for compatible Bryant and Payne commercial rooftop units and split systems.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.