Dayco 87003 HVAC Heater Hose

Overview of Dayco Small I.D. Heater Hose 87003

The Dayco Small I.D. Heater Hose 87003 is designed for reliable HVAC system performance in select Buick, Mitsubishi, Oldsmobile, Pontiac, and Toyota vehicles. This hose provides a precise 3/8 inch inside diameter on both ends, ensuring proper fitment and efficient coolant flow for models like the Buick LeSabre, Toyota Celica, and Pontiac Grand Am.

• Constructed from durable EPDM material for heat and chemical resistance
• Black single inside diameter hose with 3/8 inch inside diameter on both ends
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 6 1/4 inches for accurate installation
• Compatible with multiple vehicle makes and models including Buick Calais and Mitsubishi Starion

Detailed Product Description

The Dayco Small I.D. Heater Hose 87003 is engineered from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose is a single inside diameter type, measuring 3/8 inch on both ends, which is critical for maintaining proper coolant flow within the HVAC system. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses. The hose’s black color and 6 1/4 inch trunk height make it suitable for precise routing and installation in the HVAC systems of vehicles such as the Oldsmobile Delta 88 and Toyota MR2.

About the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line from Dayco focuses on providing hoses with smaller inside diameters tailored for specific HVAC applications. This product line emphasizes material quality and adherence to SAE specifications to ensure compatibility and durability in various automotive heating systems. The 87003 part number is part of this line, offering a reliable solution for vehicles requiring a 3/8 inch inside diameter hose without additional heat shields or protective sleeves.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in Buick Calais and Pontiac Skylark HVAC systems
• Resolving coolant leaks caused by deteriorated hoses in Mitsubishi Starion and Toyota Celica
• Maintaining proper heater core function in Oldsmobile Delta 88 and Buick LeSabre
• Preventing overheating issues related to faulty heater hose connections
• Ensuring consistent coolant flow in Pontiac Grand Am and Toyota MR2 heating circuits

Installation Notes and Tips

• Verify hose inside diameter matches the 3/8 inch specification for your vehicle
• Inspect surrounding components for wear before installation
• Ensure hose clamps are properly tightened to prevent leaks
• Route the hose to avoid contact with sharp edges or moving parts
• Replace any damaged clamps or fittings during installation for optimal performance

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87003 to meet SAE standards, ensuring consistent quality and durability. The EPDM material provides resistance to heat and automotive fluids, contributing to long service life. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand’s commitment to automotive component reliability.