Dayco 87846 HVAC Heater Hose

Reliable HVAC Heater Hose for Audi, Buick, Jeep, Lexus, Oldsmobile, Volkswagen

The Dayco Small I.D. Heater Hose 87846 is engineered to meet the specific needs of various vehicle models including Audi A4, A6, and A6 Quattro, Buick Century and Cutlass series, Jeep TJ and Wrangler, Lexus SC400, Oldsmobile Cutlass Cruiser, and Volkswagen Passat. Designed with durable EPDM material, this hose ensures consistent performance in your vehicle's heating system.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameter hose with 5/8" and 3/4" ends for versatile fitment
• Complies with SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Black color for standard OEM appearance
• Trunk height of 8-1/2 inches for precise installation

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

The Small I.D. Heater Hose line by Dayco focuses on delivering hoses with smaller inside diameters tailored for specific HVAC applications. This product line emphasizes compatibility and durability, providing hoses that meet stringent SAE standards. The 87846 part number is part of this line, offering a dual inside diameter design that supports a range of vehicle models requiring precise hose dimensions.

Product Details and Specifications

The Dayco 87846 heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose features a dual inside diameter design with one end measuring 5/8 inch and the other 3/4 inch, allowing it to connect different HVAC components efficiently. It does not include a heat shield or protective sleeve, which is typical for this hose type. The hose meets SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it adheres to industry requirements for heater hoses.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in Audi A4, A6, and A6 Quattro models
• Restoring proper coolant flow in Buick Century and Cutlass Ciera heating systems
• Resolving heater core leaks or blockages in Jeep TJ and Wrangler vehicles
• Maintaining HVAC system integrity in Lexus SC400 and Oldsmobile Cutlass Cruiser
• Ensuring reliable heating performance in Volkswagen Passat models

Installation Notes and Tips

When installing the Dayco 87846 heater hose, ensure the correct orientation of the dual inside diameter ends to match the vehicle’s HVAC connections. Inspect the hose routing to avoid kinks or sharp bends that could restrict coolant flow. Use appropriate clamps to secure the hose ends firmly, and verify there are no leaks after installation. This hose is designed for direct replacement in compatible models, simplifying the installation process.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87846 to meet rigorous SAE standards, providing reliable performance in automotive heating systems. While specific warranty details are not provided, Dayco products typically undergo strict quality control to ensure durability and fitment accuracy for the listed vehicle makes and models.