York S1-001-07110-004 Key 318973-401 Standard Bore Fitment: Includes a

Standard Bore Fitment: Includes a 1/2" bore with a secure set-screw attachment for standard motor shafts

Because fitment depends on the specific serial number and generation of the unit

High-Pressure Tolerance: Robust internal slide mechanism designed for consistent sealing and reduced pressure drop across the valve

or exhaust fans

Whether you are performing a routine service or a total ignition overhaul

York S1-001-07110-004 Key 318973-401 Standard Bore Fitment: Includes aThe York S1 001 07110 004 Square Blower Key is a critical mechanical fastener designed to prevent rotational slippage between the blower motor shaft and the fan wheel. Measuring 1 4 inch by 6. 375 inches, this genuine OEM part ensures precise power transmission in high torque HVAC applications. Constructed from hardened steel, it is engineered to withstand the constant shear stresses of residential and light commercial air handlers, eliminating the