Dayco 87958 HVAC Heater Hose - Heater Inlet

Overview of Dayco Small I.D. Heater Hose 87958

The Dayco Small I.D. Heater Hose 87958 is designed for reliable HVAC system performance in Ford and Lincoln vehicles. Engineered with durable EPDM material, this hose supports efficient heating and cooling in select models including the Ford F-150, F-150 Heritage, and Lincoln Mark LT.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameter hose with 5/8 inch and 3/4 inch ends
• Black color with protective sleeve for added durability
• Complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards
• Trunk height of 21 1/2 inches for precise fitment

Details on the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing hoses with dual inside diameters to accommodate specific HVAC system requirements. This product line is engineered to meet stringent SAE specifications, ensuring compatibility and performance in heating systems. The 87958 hose features a protective sleeve to enhance longevity without a heat shield, making it suitable for applications where heat exposure is moderate.

Technical Description and Specifications

The Dayco 87958 heater hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids. It features a dual inside diameter design with one end measuring 5/8 inch and the other 3/4 inch, both having an outside diameter of 1 3/32 inches. The hose is black and includes a protective sleeve to guard against abrasion and wear. It does not contain a heat shield, which is appropriate for its intended HVAC applications. The hose meets SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it adheres to industry requirements for heater hoses.

Compatible Vehicles and Common Applications

• Ford F-150 (various model years)
• Ford F-150 Heritage
• Lincoln Mark LT

This heater hose is specifically designed for HVAC systems in these vehicles, providing a reliable connection for heater core fluid transfer.

Common Issues Addressed by Dayco Heater Hose 87958

• Replacement of cracked or leaking heater hoses
• Resolving heater core fluid flow restrictions
• Preventing coolant leaks in HVAC system
• Upgrading worn or deteriorated hoses to maintain heating efficiency
• Ensuring proper fitment with dual inside diameter connections

Installation Notes and Tips

When installing the Dayco 87958 heater hose, ensure the correct orientation of the dual inside diameter ends to match the vehicle’s HVAC system connections. Inspect hose clamps and replace if necessary to secure a leak-free fit. Avoid twisting or kinking the hose during installation to maintain proper fluid flow. The protective sleeve should be positioned to minimize abrasion from surrounding components.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87958 to meet SAE specifications, ensuring consistent quality and durability. The EPDM material and protective sleeve contribute to long service life under normal operating conditions. Warranty details are subject to Dayco’s standard policies and may vary by distributor.