Dayco 88407 HVAC Heater Hose

Overview of Dayco Small I.D. Heater Hose 88407

The Dayco Small I.D. Heater Hose 88407 is designed for reliable HVAC system performance in select Buick, Cadillac, and Oldsmobile vehicles. Engineered with durable EPDM material, this black single inside diameter hose ensures consistent heat transfer and fluid flow for your vehicle's heating system.

• Constructed from EPDM for heat and chemical resistance
• Black color for standard OEM appearance
• Single inside diameter hose with 23/32 inch diameter on both ends
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Buick Park Avenue, Cadillac SRX and STS, Oldsmobile Regency and Riviera

Dayco Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing precise fitment and material quality for HVAC applications requiring smaller inside diameter hoses. This product line is engineered to meet specific SAE standards, ensuring durability and performance in heating systems. The 88407 hose is part of this line, offering a reliable replacement option for vehicles needing a 23/32 inch inside diameter hose without additional heat shields or protective sleeves.

Detailed Product Description

This Dayco heater hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids, making it suitable for HVAC heater core connections. Both ends of the hose have an inside diameter of 23/32 inches, providing a consistent seal and fit. The hose does not include a heat shield or protective sleeve, which is typical for applications where additional protection is not required. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses in passenger vehicles.

Applications and Common Issues Addressed

• Replacement of worn or cracked heater hoses in Buick Park Avenue HVAC systems
• Resolving coolant leaks in Cadillac SRX and STS heater core connections
• Maintaining proper heater core fluid flow in Oldsmobile Regency and Riviera models
• Preventing overheating issues caused by compromised heater hoses
• Ensuring HVAC system efficiency by restoring proper hose integrity

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 88407, ensure the hose diameter matches the vehicle’s heater core and fitting specifications. Inspect hose clamps and replace if necessary to maintain a secure seal. Avoid twisting or stretching the hose during installation to prevent premature wear. Since this hose does not include a heat shield or protective sleeve, verify that the routing avoids contact with high-temperature engine components.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 88407 to meet strict SAE specifications, providing confidence in material quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability in automotive HVAC applications.