An Engine Coolant Hose provides a direct and unobstructed pathway for the flow of coolant from the engine to the radiator. By delivering a consistent and regulated flow of coolant, the hose contributes to the optimization of the engine's operating temperature.Attributes:• Inner Diameter gradually changes from 33mm to 37mm• Provides consistent flow for reliable operationApplications:An Engine Coolant Hose facilitates the circulation of coolant between the engine and the radiator, allowing the coolant to absorb heat from the engine parts and dissipate it in the radiator.