Description
Overview
The RD-3-7383-1 blower motor assembly is a catalog-verified Red Dot component engineered for the R-9520 HVAC system. This motor drives the blower wheel to circulate air across the heater core and evaporator coil, ensuring proper cab temperature control in off-highway and heavy-equipment environments.
The 24-volt version (RD-3-7383-1) is used on equipment with 24V electrical systems and is a fully assembled, ready-to-install motor/blower module.
Key Features
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OEM Red Dot blower motor assembly
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24-volt configuration (model B for R-9520)
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Direct replacement—no modifications required
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Provides strong, consistent airflow
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Designed for demanding mobile HVAC environments
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Restores proper heating and cooling performance
Compatibility
Direct OEM fit for:
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Red Dot R-9520 HVAC unit (24V model)
Compatibility Notes:
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RD-3-7383-0 is the 12V version
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RD-3-7383-1 is the 24V version (your part)
When to Replace
Replace your blower motor assembly if you notice:
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Weak airflow or inconsistent air delivery
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Blower motor squealing, grinding, or rattling
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Motor overheating or failure to start
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Airflow only at certain speeds
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Burnt smell, electrical noise, or vibration
A failing blower motor reduces HVAC efficiency and can cause overheating of components.
Typical Applications
The R-9520 unit is used on:
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Construction equipment
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Agricultural machinery
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Industrial vehicles
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Forestry and off-highway machines
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Specialty HVAC installations requiring compact performance





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