Dayco 88497 HVAC Heater Hose - Engine To Heater or Heater To Valve Inlet

Overview of Dayco Small I.D. Heater Hose 88497

The Dayco Small I.D. Heater Hose 88497 is designed for reliable HVAC system performance in select Chevrolet and GMC vans. Engineered with durable EPDM material, this black heater hose ensures consistent heat transfer and fluid flow for your vehicle's heating system.

• Constructed from high-quality EPDM rubber for heat and ozone resistance
• Black color for standard OEM appearance
• 3/4 inch inside diameter on both ends for precise fitment
• Outside diameter of 1 3/32 inches on both ends
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type for straightforward installation
• Trunk height of 19 inches

Detailed Product Description

The Dayco Small I.D. Heater Hose 88497 is specifically manufactured to meet the HVAC hose requirements of Chevrolet Astro, Express 1500, Express 2500, Express 3500, Safari, and GMC Savana 1500, 2500, and 3500 models. This hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and weathering, making it suitable for the demanding conditions within vehicle heating systems. The hose features a consistent 3/4 inch inside diameter on both ends, ensuring compatibility with OEM fittings and maintaining proper coolant flow. Its black color matches original equipment for a clean, professional look under the hood.

The Small I.D. Heater Hose product line from Dayco focuses on providing hoses with smaller inside diameters tailored for specific HVAC applications. This line is engineered to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, which define performance criteria for coolant hoses in automotive heating and cooling systems. The 88497 part number is a precise fit for the listed Chevrolet and GMC vans, ensuring reliable operation and ease of replacement.

Common Applications and Problem Solving

• Replacement of cracked or leaking heater hoses in Chevrolet Astro and GMC Savana vans
• Resolving coolant leaks that cause insufficient cabin heating
• Addressing hose degradation due to heat exposure and aging
• Preventing coolant contamination from damaged or porous hoses
• Maintaining proper coolant flow for HVAC system efficiency

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 88497, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose dimensions match the OEM specifications, particularly the 3/4 inch inside diameter and 1 3/32 inch outside diameter. Use appropriate clamps to secure the hose ends and check for any kinks or bends that could restrict coolant flow. Inspect adjacent components for wear or damage during installation to maintain overall HVAC system integrity.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 88497 to meet stringent SAE standards, ensuring durability and performance in automotive HVAC systems. The EPDM material provides resistance to heat and environmental factors, contributing to a longer service life. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality guarantees. Consult the product packaging or Dayco’s official resources for exact warranty information.