Dayco 87803 HVAC Heater Hose

Reliable HVAC Heater Hose for Acura, Ford, Lincoln, and More

The Dayco Small I.D. Heater Hose 87803 is designed to provide dependable performance in your vehicle's heating system. Engineered with durable EPDM material, this dual inside diameter hose ensures proper coolant flow for models like the Acura RDX, Ford Escape, and Volvo S60.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameters: 5/8 inch and 3/4 inch ends for versatile fitment
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Black color for standard OEM appearance
• 24-inch trunk height for optimal routing in HVAC systems

About the Dayco Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing hoses with precise inside diameters tailored for specific HVAC applications. This product line emphasizes compatibility and durability, ensuring that hoses like the 87803 part number meet stringent SAE standards for heater hose performance in various vehicle makes and models.

Detailed Product Description

The Dayco 87803 heater hose is a dual inside diameter hose constructed from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. The hose features a 5/8 inch inside diameter on one end and a 3/4 inch inside diameter on the other, allowing it to connect different HVAC components efficiently. It does not include a heat shield or protective sleeve, making it suitable for applications where additional protection is not required. This hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses. Its 24-inch trunk height provides adequate length for routing in vehicles such as the Mazda CX-9, Lincoln MKX, and Mercury Mariner.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in Acura RDX and Ford Edge HVAC systems
• Resolving coolant leaks caused by deteriorated hoses in Volvo V50 and S40 models
• Maintaining proper coolant flow to prevent heater core failures in Lincoln MKX and Mazda CX-9
• Addressing overheating issues related to compromised heater hoses in Mercury Mariner and Ford Escape
• Ensuring HVAC system integrity in Volvo C30 and S60 vehicles

Installation Notes and Tips

When installing the Dayco 87803 heater hose, ensure the correct orientation of the dual inside diameters to match the vehicle’s HVAC connections. Inspect hose clamps and surrounding components for wear before installation. Avoid twisting or kinking the hose during routing to maintain coolant flow. This hose is compatible with multiple makes and models, including Acura, Ford, Lincoln, Mazda, Mercury, and Volvo, so verify fitment with your specific vehicle model and year.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87803 to meet SAE specifications, ensuring reliable performance and durability. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and longevity. Using this hose helps maintain the integrity of your vehicle’s HVAC system with trusted material and construction.