Dayco 71685 HVAC Heater Hose - Heater To Tee, Heater To Tee-1 or Oil Cooler Outlet

Durable Curved Radiator Hose for Select Chrysler and Ford Models

The Dayco Curved Radiator Hose 71685 is engineered to provide reliable coolant flow in various vehicle HVAC systems. Designed with EPDM material and a precise 19/32 inch inside diameter on both ends, this hose ensures a secure fit and consistent performance for models like the Ford Mustang and Toyota Highlander.

• Constructed from durable EPDM material for heat and chemical resistance
• Black single inside diameter hose with 19/32 inch ends for consistent fitment
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Curved design tailored for efficient coolant routing in HVAC systems
• Compatible with multiple makes including Chrysler, Ford, Mercury, Mitsubishi, Oldsmobile, and Toyota

About the Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses designed to fit specific HVAC applications requiring a curved profile. This product line emphasizes material quality and compliance with SAE standards to ensure durability and proper coolant flow. The 71685 part number is part of this line, offering a tailored fit for vehicles such as the Ford Mustang and Mitsubishi Montero Sport.

Product Details and Specifications

This HVAC heater hose features a single inside diameter design with both ends measuring 19/32 inches, providing a consistent connection point. Made from EPDM, the hose resists heat, ozone, and coolant chemicals, which is critical for maintaining HVAC system integrity. The hose does not include a heat shield or protective sleeve, focusing on straightforward installation and function. With a trunk height of 6 inches, it fits well within the engine bay space constraints of compatible vehicles.

Common Applications and Problem Solving

• Replacement of worn or cracked heater hoses in Chrysler Pacifica and Oldsmobile Delta 88 HVAC systems
• Resolving coolant leaks caused by hose degradation in Ford Thunderbird and Mercury Cougar
• Maintaining proper coolant flow in Toyota Highlander and Mitsubishi Montero Sport heater cores
• Addressing overheating issues related to faulty radiator hose connections
• Ensuring HVAC system efficiency by replacing hoses that fail SAE specifications

Installation Notes and Tips

Before installation, verify the hose dimensions and compatibility with your vehicle model. Ensure the cooling system is cool and depressurized to avoid injury. Use appropriate clamps to secure the hose ends firmly, preventing leaks. Inspect adjacent components for wear during replacement to maintain overall HVAC system health.

Quality Assurance and Warranty

Dayco's Curved Radiator Hose 71685 complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring material and performance reliability. While specific warranty details are not provided, Dayco products typically meet industry quality benchmarks for automotive HVAC hoses.