Quick take: The first question with any furnace blower motor is whether the replacement matches the voltage, horsepower, and crossover numbers your furnace expects. Beyond that, condition and fitment separate the four motors here. The price spread across the group is meaningful, but it only matters once the electrical and fitment details are right.
Price comparison
| Product | Listed price | Relative price bar |
|---|---|---|
| 1/3HP Furnace Blower Motor 110-120V | USD 67.29 | |
| 1/2HP 115V Furnace Blower Motor 5KCP39LGS093S | USD 112.99 | |
| First Choice WG840466-EW Y4649 Furnace Blower Motor | USD 99.99 | |
| 903075 1/3HP Furnace Blower Motor For Nordyne Intertherm Miller E Series | USD 95.99 |
Decision matrix
| If you want... | Best match | What separates it |
|---|---|---|
| The lowest listed price | 1/3HP Furnace Blower Motor 110-120V | It is the least expensive unit in this group. |
| Specific GE crossover numbers | 1/2HP 115V Motor with 5KCP39LGS093S | Three 5KCP part numbers are called out in the title. |
| A named aftermarket supplier | First Choice WG840466-EW Y4649 | The brand and model number are front and center. |
| A Nordyne/Intertherm/Miller E-series fit | 903075 1/3HP Motor | The intended series is named directly in the title. |
Product notes
1/3HP Furnace Blower Motor 110-120V 4.4A 1075RPM 4 Speeds 48 Frame 1 Phase
This motor is the least expensive unit in the comparison, and it bundles the 5μF/370V capacitor and 11-inch holding hoop in the package. The 48-frame 110-120V specification, 4.4A rating, 1075 RPM, 4-speed operation, and CW/CCW rotation make it a sensible candidate for a basic furnace blower swap where the motor sits inside the fan blade. The real limitation is the output: at 1/3 HP it is aimed at lighter blower duty, not the higher-output position that the 1/2 HP motor in this comparison covers.
1/2HP 115V Furnace Blower Motor 5KCP39LGS093S 5KCP39LGM301AS 5KCP39LGR668AS
This motor pairs 1/2 HP with 115V and a 4-speed profile, and the title lists three GE-style crossover numbers: 5KCP39LGS093S, 5KCP39LGM301AS, and 5KCP39LGR668AS. It is also described as a ball-bearing, thermally protected motor. If those three part numbers are what you see on the old motor label, this is the one to start with. The drawback is that it is the highest-priced motor of the four, so you are paying at the top of the range for the crossover specificity.
First Choice WG840466-EW Y4649 Furnace Blower Motor 1/5-3/4HP 115V 1075RPM
This is the only motor in the group with a named aftermarket brand in the title, and it is listed as new-open box from the United States. The WG840466-EW and Y4649 identifiers make it easy to follow when you are cross-referencing old labels. It is a 115V motor with 4 speeds and a 1075 RPM rating. If you want a recognizable part number and the supplier name in front of you, this is a stronger starting point. The limitation is the open-box condition detail; buyers who want a sealed factory package will need to weigh that. The 1/5-3/4 HP designation also leaves the exact operating point less fixed than a single 1/3 or 1/2 HP rating.
903075 1/3HP Furnace Blower Motor For Nordyne Intertherm Miller E Series 4-Speed
The value of this motor is the targeted fitment: it is sold for Nordyne, Intertherm, and Miller E-series electric furnaces and references the 903075 number along with 5KCP39EGT057AS, 622235, 621675, and 621932. At 1/3 HP, 240V, 960 RPM, and 2.4A, it is a consideration for an E2EB/E2EH-style system already wired for 240V. The reason to choose it is the series-specific compatibility, not the price. The limitation is that 240V and 960 RPM put it in a different operating lane than the 115V/1075 RPM motors in this comparison, so it is not a substitute when the furnace runs on 115V.
Final recommendation by use case
- Lowest price plus a 48-frame 110-120V motor: the 1/3HP Furnace Blower Motor covers a basic swap and includes the capacitor and holding hoop.
- Recognizable GE crossover numbers: the 1/2HP 115V Motor is the match when the old part number is 5KCP39LGS093S, 5KCP39LGM301AS, or 5KCP39LGR668AS.
- Named aftermarket supplier: the First Choice WG840466-EW Y4649, if open-box condition is acceptable.
- Nordyne/Intertherm/Miller E-series system: the 903075 motor is the targeted fit, but only for a 240V furnace.
