Carrier KR11AZ406 Blower Pulley 321042-401 the Series 740 is specifically

the Series 740 is specifically designed for non-potable hot water space heating applications

including 921050

specifically interfacing on the intake side

leak-proof fit for standard manifold or pipe taps

This valve is designed primarily for saturated steam

Carrier KR11AZ406 Blower Pulley 321042-401 the Series 740 is specificallyThe Carrier KR11AZ406 Blower Pulley is a critical mechanical drive component engineered for precise torque transmission in commercial HVAC blower systems. This factory authorized part is manufactured to exact tolerances, featuring a 4. 25 inch diameter and a 5 8 inch bore size to ensure a secure fit on standard motor shafts. Designed for heavy duty rotation, the KR11AZ406 fixed pitch pulley provides consistent belt alignment, reducing lateral stress