Carrier AR05FR450 Bolt 321702-401 Reduces vibration and mechanical wear

Reduces vibration and mechanical wear to promote quieter system operation

This service valve is the direct engineering successor to the 1172726

specifically compatible with Carrier air handlers and rooftop units

enabling you to force a defrost cycle and verify sequence operation in seconds without waiting for the internal timer

Carrier AR05FR450 Bolt 321702-401 Reduces vibration and mechanical wearThe Carrier AR05FR450 End Stud Bolt is a critical OEM replacement fastener designed for specific securement points within Carrier HVAC systems. As an authorized Carrier part, this bolt ensures original equipment structural integrity, providing the mechanical strength necessary to withstand the continuous vibrations and thermal expansion cycles common in high performance cooling and heating units. Measuring approximately 1 inch by 1 inch, this end stud