Dayco 86053 HVAC Heater Hose

Reliable HVAC Heater Hose for Select GM and Isuzu Vehicles

The Dayco Small I.D. Heater Hose 86053 is engineered to meet the specific needs of HVAC systems in Buick, Chevrolet, GMC, Hummer, and Isuzu models. Designed with durable EPDM material and precise 3/4 inch inside diameters, this hose ensures consistent performance in heating applications.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black single inside diameter hose with 3/4 inch ends for secure fitment
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Buick Allure, Chevrolet Colorado, GMC Canyon, Hummer H3/H3T, and Isuzu i-280/i-290/i-350/i-370 models
• Part number 86053 for precise identification and replacement

About the Dayco Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on delivering reliable HVAC hose solutions with specific inside diameters tailored for various vehicle applications. This product line emphasizes material quality and compliance with SAE standards to ensure durability and proper fitment in heating systems. The 86053 hose is part of this line, providing a single inside diameter hose option designed for efficient coolant flow and heat transfer.

Product Details and Specifications

The Dayco 86053 heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. Both ends of the hose have a 3/4 inch inside diameter, making it suitable for HVAC systems requiring this size. The hose does not include a heat shield or protective sleeve, focusing on straightforward, reliable performance. With a trunk height of 27, it fits securely within the designated HVAC routing. Compliance with SAE J20R3 Class D-1 and SAE J1684 Type EC standards ensures the hose meets industry requirements for durability and safety.

Common Applications and Problem Solving

• Replacement of worn or cracked heater hoses in Buick Allure and LaCrosse HVAC systems
• Restoring proper coolant flow in Chevrolet Colorado and GMC Canyon heating circuits
• Addressing leaks or blockages in Hummer H3 and H3T heater hoses
• Maintaining HVAC system integrity in Isuzu i-280, i-290, i-350, and i-370 models
• Preventing overheating and ensuring cabin heating efficiency

Installation Notes and Tips

Ensure the vehicle’s engine is cool before removing the old heater hose to avoid burns. Verify the 3/4 inch inside diameter matches the existing hose connections on your Buick, Chevrolet, GMC, Hummer, or Isuzu model. Inspect hose clamps and replace if necessary to secure the new hose properly. Routing should follow the original path to prevent kinks or interference with other engine components.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 86053 to meet strict SAE standards, ensuring reliable performance in automotive HVAC systems. 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.