Description
The Red Dot 72R3020 Left-Hand Fixed Vane Defrost Outlet is designed for cab HVAC systems that require consistent, directional airflow for windshield defrosting. Because it uses a fixed vane configuration, it delivers reliable airflow without adjustment, which helps reduce fogging and ice buildup.
This outlet installs on the left-hand side of the defrost ducting layout. As a result, it balances airflow across the windshield when paired with a right-hand defrost outlet.
In addition, its durable construction supports long-term use in mobile environments. Therefore, it performs well in trucks, buses, agricultural equipment, and off-highway vehicles where dependable defrost operation is essential.
Product Specifications
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Red Dot Part Number: 72R3020
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Red Dot Factory Number: RD-3-7838-3P
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Product Type: Defrost air outlet
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Vane Style: Fixed vane
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Orientation: Left-hand
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Application: Cab HVAC defrost systems
Common Applications
This left-hand defrost outlet is commonly used for:
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Truck and bus cab HVAC systems
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Off-highway and agricultural equipment
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Heater and defrost ducting assemblies
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Replacement of damaged or worn defrost vents
As a result, it helps maintain clear windshield visibility during cold-weather operation.
Interchange Numbers
This part commonly interchanges with:
232-8633
4379-RD378383
4379-RD378383P
700-6157
72R3020
Alliance: ABP N83 317045
RDHRD378383P
RDT72R3020
Product Summary
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Configuration: Left-hand defrost outlet
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Vane Type: Fixed
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Function: Directs warm air to windshield
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Application: Mobile HVAC defrost systems





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