Dayco 87311 HVAC Heater Hose - Auxiliary Heater Pipe To Auxiliary Heater or Auxiliary Heater To Auxiliary Heater Pipe

Overview of Dayco Small I.D. Heater Hose 87311

The Dayco Small I.D. Heater Hose 87311 is designed for reliable HVAC system performance in Toyota 4Runner and Pickup models. Constructed from durable EPDM material, this hose ensures consistent heat transfer and resistance to automotive fluids.

• Made from high-quality EPDM rubber for durability and heat resistance
• Black color with 1/2 inch inside diameter on both ends
• Single I.D. hose type compliant with SAE J20R3 Class D-1 and SAE J1684 Type EC standards
• Trunk height measures 8 1/4 inches for precise fitment
• Compatible with Toyota 4Runner and Pickup HVAC systems

Detailed Product Description

The Dayco Small I.D. Heater Hose 87311 is engineered to meet stringent SAE specifications, including SAE J20R3 Class D-1 and SAE J1684 Type EC, ensuring it withstands the demands of automotive heating and cooling systems. The hose features a consistent 1/2 inch inside diameter on both ends, facilitating efficient coolant flow within the HVAC system. Its EPDM construction offers excellent resistance to heat, ozone, and various automotive fluids, making it suitable for long-term use in Toyota 4Runner and Pickup vehicles. The hose does not include a heat shield or protective sleeve, reflecting its design for applications where such features are not required.

Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing precise diameter hoses tailored for HVAC applications requiring smaller inside diameters. This product line emphasizes compliance with SAE standards and material quality to ensure compatibility and durability in specific vehicle models, such as the Toyota 4Runner and Pickup. The 87311 part is a representative example, offering a reliable solution for heater hose replacement needs within this category.

Common Uses and Problem Resolution

• Replacement of worn or cracked heater hoses in Toyota 4Runner and Pickup HVAC systems
• Restoring proper coolant flow to prevent heater core overheating
• Eliminating leaks caused by hose degradation or damage
• Maintaining HVAC system efficiency and cabin heating performance
• Addressing hose failures due to exposure to heat and automotive fluids

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant. Verify the hose length and inside diameter match the original part to maintain system integrity. Use appropriate clamps to secure the hose ends and check for leaks after installation. The Dayco 87311 hose does not include a heat shield or protective sleeve, so inspect surrounding components for potential abrasion points during installation.

Quality Assurance

Dayco manufactures the Small I.D. Heater Hose 87311 to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring consistent quality and performance. The EPDM material provides resistance to heat and automotive fluids, contributing to the hose's durability. Warranty information is available through Dayco and should be confirmed at the point of purchase.