The Red Dot 73R0204 blower motor is engineered for dependable performance in demanding mobile HVAC environments. Operating on 24 volts with single-speed output, this motor is commonly used where steady, consistent airflow is required in higher-voltage electrical systems.
Its field-wound construction supports long service life under continuous operation. The sealed, non-vented housing helps protect internal components from dust and debris, while the stud mount design ensures secure installation. The 73R0204 is frequently used in heater and evaporator assemblies requiring counterclockwise rotation and a 5/16″ shaft.
Product Specifications
Red Dot Part No.: 73R0204
Red Dot Factory Part No.: RD-3106-18-24P
Red Dot Series: 73R Series
Product Name: Blower Motor
Motor Type: Field Wound
Voltage: 24V
Speed: Single Speed
Rotation: CCW
Vent: Sealed / Non-Vented
Overall Length (A): 3 7/8″
Motor Length (B): 3″
Motor Diameter (D): 3″
Shaft Type: Single
Shaft Diameter: 5/16″
Shaft Length (C): 1 7/16″
Mount Type: Stud Mount
Stud Span (E): 2 5/16″
Connector: One conductor, 14-gauge
Notes: Used in R-3911H-24 unit
Applications
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Cab heater systems
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Evaporator blower motor assemblies
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Mobile HVAC units
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Heavy-duty trucks and buses
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Off-road and industrial equipment
Interchange & Cross-Reference Numbers
OEM / Industry References:
Alliance: ABP N83 301221
Climatech: HA1765
Freightliner: RDH RD3106 18 24
Mack: 4379-RD31061824
Volvo: RDHRD31061824P
Omega: 26-R0204
TruckAC+: T5838
TEXAS TRUCK AC: 150-4782
Red Dot References:
Aftermarket: 73R0204
Factory: RD-3106-18-24P
Interchange Numbers:
150-4782, 232-8745, 2807-508-008, 4379-RD31061824P, 73R0204, ABP N83 301221, HA17650, RDH RD3106 18 24, RDHRD31061824P, RDT73R0204
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