Choosing between two furnace blower motors can come down to how specific your existing part number is. These two 115V 1075 RPM motors are both aimed at forced-air furnace blowers, but they split on horsepower and compatibility. The First Choice WG840466-EW Y4649 is a parts-number-specific motor, while the 5KCP39 motor is built around GE part numbers. If your old motor still has a legible label, the part number on it is the fastest way to pick a side. If the label is gone or faded, you will need to lean on the horsepower and voltage that your furnace blower assembly expects. The voltage and speed are the same on paper, so the real difference is how each motor handles horsepower and how easily you can confirm the replacement against the label on your old part.
Quick verdict: Buy the First Choice when its WG840466-EW / Y4649 part reference matches your motor; buy the 5KCP39 when a 5KCP39 series cross-reference fits. Let the imprint on your current motor be the tiebreaker.
| Product | Listed Price | Price Bar | Key Specs |
|---|---|---|---|
| First Choice WG840466-EW Y4649 Furnace Blower Motor | USD 99.99 | 115V, 1075 RPM, 1/5-3/4 HP, four-speed; model WG840466-EW / Y4649 | |
| 1/2HP 115V Furnace Blower Motor 5KCP39LGS093S | USD 112.99 | 115V, 1075 RPM, 1/2 HP, four-speed; GE-compatible; ball bearing; thermally protected |
Where each product wins: The First Choice wins on the precise WG840466-EW / Y4649 part reference. The 5KCP39 motor wins on cross-reference clarity: it covers three GE part numbers at once, and it includes ball-bearing construction, thermal protection, and an easy-to-replace design.
First Choice WG840466-EW Y4649 Furnace Blower Motor 1/5-3/4HP 115V 1075RPM
The headline feature of the First Choice motor is the 1/5 to 3/4 horsepower range. Instead of being locked to a single HP rating, this motor can be used where your blower needs land inside that band, giving you extra flexibility when you are not replacing an identical part number. It is identified by the WG840466-EW / Y4649 part numbers, which gives you a precise reference to check against your existing furnace motor. The practical limitation is that the part is tied to that reference: confirm that WG840466-EW or Y4649 matches the motor you are taking out before you order. If that number lines up, the flexible HP range gives you a useful buffer.
1/2HP 115V Furnace Blower Motor 5KCP39LGS093S 5KCP39LGM301AS 5KCP39LGR668AS
This motor is the more compatibility-focused option. It is explicitly built around GE part numbers 5KCP39LGS093S, 5KCP39LGM301AS, and 5KCP39LGR668AS, so a quick glance at the label on your current motor can tell you if this is the right replacement. It is a fixed 1/2 HP motor with four-speed operation, and it includes ball bearing construction, thermal protection, and a durable, easy-to-replace design. The limitation is that the horsepower is fixed at 1/2 rather than adjustable, so it is only the right choice if your furnace blower spec actually calls for 1/2 HP.
Final choice by use case: Choose the First Choice WG840466-EW if the lower listed price and HP flexibility matter most. Choose the 5KCP39 motor if a specific 5KCP39 part number match matters most.
