186-4133: 22.21mm Hex Size Permanent Coupling

Description: A Permanent Coupling for a radiator refers to a specialized fitting used to establish a secure and reliable connection between the radiator and the coolant circulation system in an engine or a cooling system. Radiators are essential components in vehicles and HVAC systems, responsible for dissipating heat from the coolant to maintain optimal operating temperatures. Attributes: • Resistant to wear and corrosion. • Withstands high pressures, vibration, and external forces. • For 12.7 mm Inner Diameter Hose. Applications: A Permanent Coupling is used to provide a secure connection between the radiator and the coolant circulation system. It allows for the flow of coolant from the engine or the cooling system through the radiator for heat dissipation.