Dayco 72337 Engine Coolant Bypass Hose

Overview of Dayco Curved Radiator Hose 72337

The Dayco Curved Radiator Hose 72337 is designed for reliable engine coolant bypass in select Buick, Chevrolet, Pontiac, and Saturn vehicles. Engineered with durable EPDM material, this black single inside diameter hose ensures consistent performance in cooling systems.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black color with 23/32 inch inside diameter on both ends
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type for precise fitment
• Trunk height of 5 1/2 inches for proper routing

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on providing hoses that accommodate specific engine coolant bypass needs with precise bends and dimensions. This product line is engineered to meet stringent SAE standards, ensuring compatibility and durability in cooling systems. The 72337 hose is part of this line, offering a tailored fit for various GM models requiring a curved hose with consistent inside diameters.

Detailed Product Description

This engine coolant bypass hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. Both ends of the hose have an inside diameter of 23/32 inches, designed as a single i.d. hose to maintain proper coolant flow. The hose does not include a heat shield or protective sleeve, which is typical for this type of bypass hose. Its trunk height of 5 1/2 inches allows for correct installation and routing within the engine bay.

Compatible Vehicles and Applications

• Buick Aura, Terraza
• Chevrolet Impala, Malibu, Montana, Relay, Uplander
• Pontiac G6, Monte Carlo, G6
• Saturn Vue

This hose is specifically designed to replace the engine coolant bypass hose in these models, ensuring proper coolant circulation and engine temperature regulation.

Common Issues Addressed by This Hose

• Coolant leaks due to cracked or worn bypass hoses
• Overheating caused by restricted coolant flow
• Hose collapse or deformation under pressure
• Failure from chemical degradation or heat exposure
• Improper fitment leading to coolant system inefficiency

Installation Notes and Tips

Ensure the engine is cool before removing the old hose to prevent burns. Verify the inside diameter and trunk height match the original hose for proper fitment. Use appropriate clamps to secure the hose ends and check for leaks after installation. Avoid twisting or stretching the hose during installation to maintain its integrity.

Quality Assurance and Warranty

The Dayco Curved Radiator Hose 72337 meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards, reflecting compliance with industry requirements for coolant hoses. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to ensure durability and performance in automotive applications.