Dayco 71637 Radiator Coolant Hose - Lower, Lower - Engine To Radiator or Upper

Overview of Dayco Curved Radiator Hose 71637

The Dayco Curved Radiator Hose 71637 is designed to provide reliable coolant flow for select Ford, Mazda, Mercury, and Mitsubishi vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black color with a curved design for precise fitment
• Inside diameter of 1 5/16 inches on both ends for uniform coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose without heat shield or protective sleeve
• Trunk height dimension of 11 inches for proper routing

Detailed Product Description

The Dayco Curved Radiator Hose line focuses on delivering hoses that match OEM specifications for coolant system integrity and durability. The 71637 part number is a single inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a consistent 1 5/16 inch inside diameter on both ends, ensuring a secure and leak-free connection within the cooling system. It does not include a heat shield or protective sleeve, which is typical for applications where additional protection is not required. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems.

Compatible Vehicles and Applications

This radiator coolant hose is compatible with various models from Ford, Mazda, Mercury, and Mitsubishi, including the Ford Escape and Mariner, Mazda 626 and MX-6, Mercury Aspire and Tribute, and Mitsubishi Lancer and Probe. It is designed to replace worn or damaged radiator hoses in these vehicles, maintaining proper coolant circulation and engine temperature regulation.

• Replaces cracked or leaking radiator hoses
• Prevents coolant loss and overheating issues
• Restores proper coolant flow in the radiator system
• Addresses hose swelling or softening due to age
• Eliminates coolant contamination from hose deterioration

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71637, ensure the engine is cool to avoid burns or injury. Verify the hose routing matches the original configuration to prevent kinks or interference with other engine components. Use appropriate clamps to secure the hose ends firmly, and inspect all connections for leaks after installation. It is recommended to replace any worn clamps or related components during installation for optimal performance.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71637 to meet stringent SAE specifications, ensuring durability and compatibility with specified vehicle models. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality assurance to support reliable operation within the intended application.