Dayco 86057 HVAC Heater Hose

Reliable HVAC Heater Hose for Nissan, Infiniti, and Oldsmobile Vehicles

The Dayco Small I.D. Heater Hose 86057 is designed to meet the specific HVAC needs of select Nissan, Infiniti, and Oldsmobile models. Engineered with durable EPDM material, this black single inside diameter hose ensures consistent performance in your vehicle's heating system.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black color for standard OEM appearance
• 3/4 inch inside diameter on both ends for precise fit
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type for streamlined installation
• Trunk height of 9 inches for proper routing

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

The Small I.D. Heater Hose line by Dayco focuses on providing reliable, OEM-quality hoses with smaller inside diameters tailored for HVAC systems. This product line emphasizes durability and compliance with SAE standards, ensuring compatibility and longevity in heating applications. The 86057 part is a representative component within this line, designed to fit specific vehicle models requiring a 3/4 inch inside diameter hose.

Detailed Product Description

The Dayco 86057 heater hose is manufactured from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose features a consistent 3/4 inch inside diameter on both ends, making it suitable for HVAC systems in various Nissan and Infiniti models such as the 370Z, EX35, FX35, G35, Q60, and Q70 series, as well as select Oldsmobile vehicles. The hose does not include a heat shield or protective sleeve, which is typical for this type of single inside diameter hose. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in Nissan 370Z and Infiniti Q70 HVAC systems
• Resolving coolant leaks caused by deteriorated hoses in FX35 and G35 models
• Maintaining proper heater core function in EX35 and QX70 vehicles
• Preventing overheating issues related to compromised heater hose integrity
• Ensuring consistent cabin heating performance in M35h and G37 models

Installation Notes and Tips

When installing the Dayco 86057 heater hose, ensure the hose routing matches the original OEM path to avoid kinks or interference with other engine components. Verify that the 3/4 inch inside diameter matches the vehicle’s heater core and fitting sizes. Use appropriate clamps to secure the hose ends firmly, preventing leaks. Inspect surrounding components for wear during replacement to maintain overall HVAC system integrity.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 86057 to meet strict SAE specifications, ensuring reliable performance and durability. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and longevity, making this hose a dependable choice for HVAC system repairs in compatible Nissan, Infiniti, and Oldsmobile vehicles.