Choosing a replacement furnace blower motor is mostly a matching exercise: voltage, horsepower, frame size, RPM, and speed taps all need to line up with your existing system. The four motors below span a listed price range from $67.29 to $155.00, so you can spend a little or a lot depending on what your furnace actually needs.
Quick take: If you need an ECM motor, the GE ECM 3.0 1/2 HP Motor is the only one. For a new 115V 1/2 HP four-speed replacement, the 1/2HP 115V Furnace Blower Motor fits common GE part numbers. The 1/3HP Furnace Blower Motor is the lowest-priced option and includes a capacitor. The First Choice WG840466-EW is a new open-box 115V motor with a wide 1/5-3/4 HP range.
Listed price comparison
| Product | Listed price | Price bar |
|---|---|---|
| GE ECM 3.0 1/2 HP Motor 5SME39HXL3057 HD44RE124 | $155.00 | |
| 1/2HP 115V Furnace Blower Motor 5KCP39LGS093S | $112.99 | |
| 1/3HP Furnace Blower Motor 110-120V 4.4A | $67.29 | |
| First Choice WG840466-EW Y4649 Furnace Blower Motor | $99.99 |
Decision matrix
- Need an ECM motor? The GE ECM 3.0 1/2 HP Motor is the only electronically commutated motor here, and it's a 230V unit.
- Need a new 1/2 HP 115V motor? The 1/2HP 115V Furnace Blower Motor is new, four-speed, and designed to replace GE part numbers like 5KCP39LGS093S.
- Need the lowest listed price? The 1/3HP Furnace Blower Motor is the least expensive option, with 110-120V, 4.4A, and four speeds.
- Need a 115V motor with a broad horsepower range? The First Choice WG840466-EW covers 1/5 to 3/4 HP at 1075 RPM and is listed as new open box.
GE ECM 3.0 1/2 HP Motor 5SME39HXL3057 HD44RE124
This used motor carries the ECM 3.0 label, which means it's an electronically commutated blower motor rather than a standard split-phase unit. It's a 230V 1/2 HP, 1-phase model made in the United States. At $155.00, it's the most expensive motor here. The motor is described as tested for proper function before sale, with a refund available if it doesn't work. The main limitation is the 230V requirement: if your furnace is wired for 115V, this isn't a match. The used condition also means you're buying a part with prior service life, not a new component.
1/2HP 115V Furnace Blower Motor 5KCP39LGS093S 5KCP39LGM301AS 5KCP39LGR668AS
This is a new 1/2 HP motor for 115V systems, and it's positioned as a direct replacement for a series of GE part numbers including 5KCP39LGS093S, 5KCP39LGM301AS, and 5KCP39LGR668AS. The four-speed operation gives you airflow flexibility, and the motor is built with ball bearings and thermal protection. At $112.99, it's in the middle of this price range. One caveat: this is a compatible replacement, not a genuine GE part, so if you're set on an original motor, you'd need to look elsewhere. It's also noted as easy to replace and durable.
1/3HP Furnace Blower Motor 110-120V 4.4A 1075RPM 4 Speeds 48 Frame 1 Phase
For $67.29, this is the least expensive furnace blower motor in the group. It's a new 1/3 HP unit that runs on 110-120V at 4.4A, with a 48 frame size, 1075 RPM, and four speeds. The package includes a 5μF/370V capacitor and an 11-inch hold hoop, so you don't need to buy those separately. The motor supports CW/CCW rotation. The main limitation is that there's no brand name attached, so you're relying on the printed specs rather than a known manufacturer's reputation to confirm it matches your furnace.
First Choice WG840466-EW Y4649 Furnace Blower Motor 1/5-3/4HP 115V 1075RPM
This First Choice motor is listed as new open box and priced at $99.99. It covers a wide 1/5 to 3/4 HP range while spinning at 1075 RPM and running on 115V, with four speeds. It's made in the United States. The open-box condition is the trade-off: you're getting a new part, but the packaging may already be opened. The specific part number WG840466-EW should be checked against your original motor to confirm the replacement matches your furnace setup.
Final recommendation by use case
If your existing furnace blower is a 230V ECM, the GE ECM 3.0 1/2 HP Motor is the direct ECM choice. If you need a new 115V 1/2 HP four-speed motor with common GE compatibility, the 1/2HP 115V Furnace Blower Motor is a good fit. For a 1/3 HP 110-120V application and the lowest listed price, the 1/3HP Furnace Blower Motor includes the capacitor you'll need. If you want a US-made 115V motor and can accept an open-box part, the First Choice WG840466-EW offers a wide 1/5-3/4 HP operating range.
