Another tuning rarity from KATECOOL brings you better cooling performance and more comfortable driving experience!
An auxiliary radiator in an automotive cooling system is a secondary radiator that works alongside the main radiator to help manage the engine's heat load more effectively. These are especially common in high-performance, turbocharged, or towing-capable vehicles, where additional cooling is needed.
Function of an Auxiliary Radiator
The auxiliary radiator provides additional heat dissipation capacity by:
- Increasing coolant surface area for heat transfer.
- Reducing coolant temperature before it returns to the engine or other systems.
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Handling localized cooling needs (e.g., cooling specific components like the transmission,
turbocharger, or battery systems in hybrids/EVs). - Operating in parallel or sequentially with the main radiator depending on temperature and system design.
Advantages of an Auxiliary Radiator
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Improved Engine Cooling Efficiency
● Helps prevent overheating, especially under high-load conditions (e.g., racing, towing, mountain driving). -
Enhanced Performance
● Cooler engine and intake temperatures allow the engine to run more efficiently and prevent power loss due
to heat soak. -
Extended Engine Life
● Reduces thermal stress on engine components, lowering the risk of heat-related wear or failure. -
Supports High-Power Engines
● Necessary in turbocharged or supercharged engines that generate more heat than naturally aspirated engines. -
Thermal Management for Additional Systems
● Can be used to cool hybrid battery systems, transmission oil, or even intercooler loops. -
Improved Climate Control
● Reduces the thermal load on the HVAC system, indirectly enhancing cabin cooling efficiency.
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