3-speed blower assembly for Nordyne M1 series gas furnaces. 115V. 1/4hp.
If adding air conditioning to an M1 furnace that isn't A/C ready, you will need to replace your 1-speed blower assembly (903409, 903410, 903411 or 903412) with this 903773, unless you are adding a 5-ton air conditioner then you will need to purchase a 903890 assembly. Red wire is low, blue is medium, black is high, brown wires lead to capacitor Even if using the furnace for heat-only and need to replace the blower assembly, Cap the speed wires not used. updating to this 3-speed blower assembly would be fine and less expensive.
This 903773 blower assembly contains the following parts:
D07482R housing, 667037 blower wheel, 901874 motor
903774 3-speed 1/4hp motor, RBW10208 10x8 blower wheel & a PRCF10A 10/370 round run cap.
Physical dimensions of the blower assembly are 11.75" wide x 18" deep x 15.25" tall. The opening which the air blows through is 10" x 7-5/8".