73R4102 Red Dot Blower Motor, 12V, Double Shaft

The Red Dot 73R4102 is engineered for mobile HVAC applications that require a double-shaft blower motor, commonly used in dual-wheel heater and evaporator assemblies. Its field-wound motor design provides strong starting torque and reliable airflow under continuous-duty conditions.

Operating on 12 volts, this motor features a vented housing to help manage heat during extended operation. The strap/stud mounting configuration with a 2-5/16″ span allows for straightforward installation across a wide range of heavy-duty truck, bus, and off-road HVAC systems.

Product Specifications

Red Dot Part No.: 73R4102
Red Dot Factory Part No.: RD-5-3780-0P
Product Name: Blower Motor

Voltage: 12V
Speed: Single Speed
Motor Type: Field Wound
Vent: Vented

Shaft Configuration: Double Shaft
Shaft Diameter: 5/16″
Shaft Length: 3″

Mount Type: Strap / Stud Mount
Mounting Span: 2-5/16″

Connector: Three-conductor, 1/4″ female spade

Applications

• Mobile heater and evaporator assemblies using dual blower wheels

• Heavy-duty truck HVAC systems

• Bus and off-road equipment HVAC applications

• Replacement for OEM double-shaft blower motors

Interchange & Cross-Reference Numbers

OEM / Industry References:
Air Source / MEI: 3393
Alliance: ABP N83 301162
Carrier / Mobile Climate Control: 101-143
Climatech (Kenworth / Peterbilt): HB1155, HA1845, 431-7577, 433-9305
Ford / Motorcraft: C7AZ-19805-B, EDE6LH-19805DA
Ford New Holland: 130185
Four Seasons / Everco: 35501, 900314
JBar: 403953
John Deere: 842930200
Mack: 4379-RD537800
Navistar / Fleetrite: ZGG14811
Siemens: PM393
Truck Air / MEI: 01-3001
Volvo: 60009-5021, RDHRD537800P

Red Dot References:
Aftermarket: 73R4102
Factory: RD-5-3780-0P

Interchange Numbers:
01-3001, 1-1028, 1-1955, 1-2750, 101-143, 1099048, 110-1032, 130185, 150-3512, 208905, 232-8811, 26-13265, 26-14500-D, 274418, 2807-510-076, 2807-510-143, 2819-530-044, 3393, 35501, 403953, 431-7577, 433-9305, 4379-RD537800P, 446991C1, 510-396, 60009-5021, 73R4102, 842930200, 900314, ABP N83 301162, BM11132, PM393, RDHRD537800P, RDT73R4102, ZGG14811