Dayco 88374 HVAC Heater Hose - Heater Outlet, Heater To Engine or Heater To Pipe

Overview of Dayco Small I.D. Heater Hose 88374

The Dayco Small I.D. Heater Hose 88374 is designed for reliable HVAC system performance in select Chrysler, Dodge, Ford, Mercury, and Suzuki vehicles. Engineered with durable EPDM material, this hose ensures consistent heat transfer and resistance to automotive fluids.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black single inside diameter hose with 3/4 inch ID on both ends
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Trunk height dimension of 9 inches for precise fitment
• Compatible with Chrysler 300M, Dodge Intrepid, Ford Tempo, Mercury Topaz, Suzuki XL-7, and related models

Detailed Product Description

The Dayco Small I.D. Heater Hose 88374 is part of the Small I.D. Heater Hose product line, which focuses on delivering hoses with smaller inside diameters tailored for HVAC heater core connections. This hose is constructed from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids, making it suitable for heater core applications. Both ends of the hose have a 3/4 inch inside diameter, ensuring compatibility with OEM fittings and maintaining proper coolant flow.

Designed as a single inside diameter hose without heat shields or protective sleeves, this hose meets SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling systems. The 9-inch trunk height dimension supports proper routing and fitment in the specified vehicle models.

Compatible Vehicles and Applications

• Chrysler 300M, Concorde, Intrepid, LHS
• Dodge Intrepid
• Ford Tempo
• Mercury Topaz
• Suzuki XL-7

This heater hose is intended for use in HVAC systems to transport heated coolant from the engine to the heater core, facilitating cabin heating.

Common Issues Addressed by Dayco 88374 Heater Hose

• Leaking or cracked heater hoses causing coolant loss
• Reduced heater core performance due to hose degradation
• Swelling or softening of hoses from heat exposure
• Incorrect hose diameter leading to poor fit or coolant flow restrictions
• Failure to meet SAE specifications resulting in premature hose failure

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant. Verify the 3/4 inch inside diameter matches the OEM hose connections on your vehicle. Inspect hose routing to prevent kinks or contact with moving parts. Use appropriate clamps to secure the hose ends firmly. Replace any worn or damaged clamps during installation for optimal sealing.

Quality Assurance and Warranty

Dayco Small I.D. Heater Hose 88374 is manufactured to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring durability and performance in automotive HVAC systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality standards for replacement hoses.