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Rheem/Ruud O.E.M. (Original Equipment Manufacturer) Furnace Motors

A typical direct drive furnace motor. Click image to enlarge, use browser back button to return.

These motors are the exact motors that came in Rheem/Ruud Furnaces originally. Bear in mind, if your motor has been changed it may not bear the Rheem/Ruud part number that it once did.
Look at the motor or your documentation that came with your furnace and find the number starting with a "51" Example: 51-27210-01

Also order the matching run capacitor for the motor if it is required. If not required you will find "n.a." in the capacitor column. Capacitor chart is at bottom of this page.

All motors below have their rotation as viewed from the wire leads end of the motor.
All motors listed have open enclosures and are meant for indoor use only (not weatherproof).

Mounting Codes:
BB: Belly band mount. Mount goes around the motor itself.
TB: Thru Bolts mount. Mount is attached to the studs at the end of the motor.
SS: Shell Screws mount. Mount is attached by means of screw holes in casing of motor

NOTE: 51-27210-02 and 51-27210-03 comes from the factory to you. No tracking number will be available on these motors.

51-25023-01 replaces old # 51-22859-01

Part No.	HP	Volts	RPM	Speeds	Amps	Rotation	Capacitor MFD/Volts	Frame	Bearings	Shaft Dia.	Shaft Length	Shell Length	Mounting
51-27210-01	1/6	115	900	2	3.2	ccw	10/370	48	sleeve	.500	2.570	4.230	SS/BB
51-23015-31	1/5	115	1050	3	6.5	ccw	n.a. Shaded Pole	42	sleeve	.500	3.000	4.230	TB/BB
51-27210-02	1/4	115	900	2	4.5	ccw	15/370	48	sleeve	.500	3.320	4.480	SS/BB
51-23014-32	1/4	115	1050	3	8.8	ccw	n.a. Shaded Pole	48	sleeve	.500	4.500	4.125	TB/BB
51-23102-04	1/2	115	825	1	6.8	ccw	20/370	48	sleeve	.500	3.250	5.230	SS/BB
51-27210-03	1/2	115	900	2	7.2	ccw	20/370	48	sleeve	.500	3.320	5.230	SS/BB
51-24272-01	1/2	115	1080	3	7.9	ccw	15/370	48	sleeve	.500	3.750	5.230	SS/BB
51-24070-02	1/2	115	1000	4	7.1	ccw	7.5/370	48	sleeve	.500	3.500	4.730	SS/BB
see note above 51-25023-01	3/4	115	1100	4	9.5	ccw	15/370	48	sleeve	.500	3.750	5.730	SS/BB

Oval Run Capacitors for Motors above.

Part No.	MFD/Volts	Width"	Depth"	Height" (allow 0.75" for terminal and wire clearance)
43-25134-02	5/370	2.07	1.24	1.77
43-25134-03	7.5/370	2.07	1.24	2.95
43-25134-04	10/370	2.07	1.24	2.95
43-25134-06	15/370	2.07	1.24	3.94
43-25134-07	20/370	2.77	1.77	2.95

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