Nordyne 621710 Motor

When swapping a failed blower, the Nordyne 621710 Motor serves as the direct OEM replacement engineered for 115V residential gas furnaces and air handlers. This 5.6-inch diameter, 1/3 HP blower motor is a versatile 6-pole permanent-split capacitor (PSC) design, providing stable torque across 3 speed settings to match original factory airflow requirements. Running at 1075 RPM with a 6.0 Amp draw, it features a 1/2-inch by 4-inch steel shaft and rotates counter-clockwise (CCW) when viewed from the lead end. The integrated thermal overload protection includes an auto-reset function to prevent windings from scorching during high-static conditions or restricted ductwork. For a clean install, it utilizes a pre-attached color-coded wiring harness (Black-High, Blue-Med, Red-Low), though a 5MFD 370V run capacitor must be sourced separately. Professionals choose this Intertherm furnace motor because it maintains the exact form factor required for standard blower sleds, ensuring long-term bearing stability and quiet operation in high-cycle environments.

• Precise OEM Fit: Drop-in replacement with a 5.6" housing and 4" depth, eliminating the need for bracket modifications.
• Adjustable Airflow: Three discrete speed taps allow for precise tuning of heating and cooling CFM.
• High Temperature Safety: Built-in auto-reset thermal protection guards against motor burnout.
• Efficient Design: Permanent-split capacitor (PSC) operation ensures lower energy consumption and reliable startup.
• Durable Shaft Construction: 1/2" x 4" shaft is machined for a secure fit with the blower wheel hub.

What capacitor is required for the Nordyne 621710?
This motor requires a 5 MFD 370V or 440V run capacitor (not included) to ensure the starting torque meets factory specifications.

Is the Nordyne 621710 rotation reversible?
No, this motor is fixed for Counter-Clockwise (CCW) rotation as viewed from the shaft/lead end, matching standard Nordyne furnace configurations.

Does this motor include the mounting bracket?
This is the motor only; it is designed to fit into your existing blower housing mounting ears or Torsion Flex brackets.

This item is not eligible for free shipping.

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.