Gates 12258 Heater Hose Coolant Hose

The Gates 12258 is a premium heater hose engineered for reliable coolant flow between the engine and heater core. Built to Gates' exacting standards, this hose resists the high temperatures, pressures, and electrochemical degradation (ECD) that cause premature hose failure in demanding engine compartment environments.

Key Features:

• Constructed with a high-quality EPDM rubber compound for superior heat and coolant resistance
• Reinforced inner construction resists collapse under vacuum and pressure fluctuations
• Resistant to electrochemical degradation (ECD), a leading cause of heater hose failure
• Designed to meet or exceed OEM fit, form, and function requirements
• Maintains flexibility across a wide temperature range for long service life

Gates is a globally recognized leader in automotive belts and hoses. The Gates 12258 heater hose is an ideal direct-replacement part for routine maintenance or when addressing a coolant leak, ensuring the heating system continues to deliver warm air to the cabin and proper thermal management to the engine.