Dayco 87838 HVAC Heater Hose

Overview of Dayco Small I.D. Heater Hose 87838

The Dayco Small I.D. Heater Hose 87838 is designed for reliable HVAC system performance in select Cadillac, Ford, and Mazda vehicles. Engineered with durable EPDM material, this black single inside diameter hose ensures consistent heat transfer and fluid flow for your vehicle's heating system.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black color for standard OEM appearance
• 5/8 inch inside diameter on both ends for precise fitment
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type for streamlined installation
• Trunk height dimension of 12 inches

Detailed Product Description

This Dayco Small I.D. Heater Hose 87838 is manufactured to meet stringent SAE standards, including SAE J20R3 Class D-1 and SAE J1684 Type EC, ensuring compatibility with factory HVAC system requirements. The EPDM material offers excellent resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in heating applications. Both ends of the hose have a 5/8 inch inside diameter, providing a secure and leak-resistant connection in the heating circuit. The hose is black in color and does not include a heat shield or protective sleeve, consistent with many OEM replacement hoses.

The Small I.D. Heater Hose product line from Dayco focuses on delivering precise diameter hoses tailored for HVAC systems requiring smaller inside diameters. This line is engineered to maintain system integrity and fluid flow in heating applications, making it a reliable choice for vehicles needing specific hose dimensions and SAE compliance.

Compatible Vehicles and Applications

• Cadillac CTS and STS models requiring 5/8 inch heater hoses
• Ford Ranger and B2300 trucks with matching HVAC hose specifications
• Mazda B2300 models compatible with this hose size and material
• Cadillac SRX models with OEM heater hose requirements

Common Issues Addressed by This Heater Hose

• Replacement of cracked or leaking heater hoses causing coolant loss
• Resolving heater core flow restrictions due to deteriorated hoses
• Preventing overheating issues related to faulty HVAC hose connections
• Eliminating coolant odors inside the vehicle caused by hose leaks
• Maintaining proper heater system pressure and temperature regulation

Installation Notes and Tips

Ensure the vehicle is cool and the cooling system is depressurized before removing the old heater hose. Verify the 5/8 inch inside diameter fitment on both ends matches the OEM specifications. Inspect hose clamps and replace if necessary to secure the new hose properly. Avoid twisting or kinking the hose during installation to maintain optimal coolant flow. This hose does not include a heat shield or protective sleeve, so route it away from high-heat engine components.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87838 to meet SAE standards, ensuring durability and performance in HVAC applications. The EPDM construction provides resistance to heat and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided, Dayco products generally adhere to industry quality controls and reliability standards.