Dayco 87974 HVAC Heater Hose - Heater To Pipe

Overview of Dayco Small I.D. Heater Hose 87974

The Dayco Small I.D. Heater Hose 87974 is designed specifically for Ford Focus models requiring reliable HVAC heater hose replacement. Constructed from durable EPDM material, this hose ensures consistent performance in heating and cooling systems.

• Made from high-quality EPDM rubber for heat and chemical resistance
• Dual inside diameter hose with 5/8 inch and 3/4 inch ends
• Black color for standard OEM appearance
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Outside diameters of 1 inch and 1 1/8 inch for secure fitment
• Compatible with Ford Focus HVAC systems

Detailed Product Description

The Dayco Small I.D. Heater Hose 87974 is engineered to meet the specific HVAC hose requirements of Ford Focus vehicles. Featuring a dual inside diameter design, the hose accommodates connections with 5/8 inch and 3/4 inch inner diameters, ensuring a precise fit. The EPDM material provides resistance to heat, ozone, and coolant chemicals, which is critical for maintaining HVAC system integrity. This hose does not include a heat shield or protective sleeve, focusing on essential functionality within the heating system. The hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating applications.

About the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco is tailored for vehicles requiring hoses with smaller inside diameters, such as the dual i.d. hose design found in part number 87974. This product line emphasizes precise fitment and material durability to support HVAC system performance in compact and mid-sized vehicles like the Ford Focus.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in Ford Focus HVAC systems
• Resolving coolant leaks that affect cabin heating efficiency
• Preventing hose collapse or blockage that restricts coolant flow
• Maintaining proper heater core function by ensuring secure hose connections
• Addressing hose degradation due to heat and chemical exposure over time

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant. Verify hose diameters match the OEM specifications for the Ford Focus HVAC system. Use appropriate clamps to secure the hose ends, ensuring no leaks occur. Inspect surrounding components for wear or damage during replacement to maintain overall system reliability.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87974 to meet SAE automotive standards, ensuring consistent quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand's commitment to durability and fitment accuracy.