73R1052 Red Dot Blower Motor, 12V, Three Speed, CCW, 5/16″ Shaft – Stud Mount

The Red Dot 73R1052 blower motor is engineered for applications requiring multiple airflow speeds and durable performance in demanding mobile HVAC environments. Operating on 12 volts with three selectable speeds, this motor allows precise control of cab airflow for improved comfort and system efficiency.

Its field-wound construction is well suited for sustained operation under heavy load, while the vented housing supports heat dissipation during extended run times. The stud mount configuration with a 2 5/16″ span ensures secure installation. The single 5/16″ shaft, supplied with a 3/8″ adapter, and counterclockwise rotation make the 73R1052 a versatile replacement across many heavy-duty HVAC systems.

Product Specifications

Red Dot Part No.: 73R1052
Red Dot Factory Part No.: RD-5-4932-0P
Red Dot Series: 73R Series
Product Name: Blower Motor
Motor Type: Field Wound

Voltage: 12V
Speed: Three Speed
Rotation: CCW
Vent: Vented

Overall Length: 4 3/4″
Motor Length: 4 1/4″
Motor Diameter: 3 1/4″

Shaft Type: Single (5/16″ dia) with 3/8″ adapter
Shaft Length: 1 5/32″

Mount Type: Stud Mount
Stud Span: 2 5/16″

Connector: Three-conductor Packard #2971962 with terminal block

Applications

• Cab heater systems

• Evaporator blower motor assemblies

• Multi-speed mobile HVAC units

• Heavy-duty trucks and buses

• Off-road and industrial equipment

Interchange & Cross-Reference Numbers

OEM / Industry References:
Air Source: 3769
Alliance: ABP N83 301281
Climatech: HA1210, HA12100
DTAC: 02-17028
Four Seasons / Everco: 900323
Kysor: 1018001
Mack: 4379-RD549320
Siemens: PM769
Truck Air: 01-1600
Volvo: RDHRD549320P

Red Dot References:
Aftermarket: 73R1052
Factory: RD-5-4932-0P

Interchange Numbers:
01-1600, 02-17028, 1-2623, 1-2828, 1018001, 104-1002, 176571, 203136, 209015, 209173, 232-8787, 274233, 2807-516-056, 35481, 3769, 4379-RD549320, 4379-RD549320P, 510-415, 60009-0002, 60009-0004, 60009-0005, 60009-3201, 60009-5002, 60009-5018, 73R1052, 900323, ABP N83 301281, ABP N83 301571, AM86549, BM04102, E-803020, PM769, RDHRD549320P