Dayco 88003 Molded HVAC Heater Hose

The Dayco 88003 is a precision-molded small inside diameter heater hose designed to replace OEM coolant hoses in select General Motors vehicles. This custom-fit molded hose is engineered with the same bends and routing as the original equipment assembly to ensure precise installation and reliable performance.

Key Features:

• Molded EPDM rubber construction with knitted reinforcement for superior strength and durability
• Designed to meet SAE J20R4, Class D-1 requirements for automotive heater hoses
• Temperature rating of -40°F to +257°F (-40°C to +125°C) for extreme climate performance
• Manufactured in the USA to strict quality standards
• Compatible with all common coolants and coolant additives
• Precision-molded design eliminates the need for custom bending or modification

Dayco molded heater hoses provide long-lasting, leak-free service in your vehicle's HVAC system. The EPDM synthetic rubber construction resists deterioration from heat, chemicals, and environmental elements while the internal reinforcement provides excellent burst strength. This direct-fit replacement hose restores proper coolant flow between your engine and heater core for reliable cabin heating performance.