Gates 20703 Radiator Coolant Hose - Lower

Overview of Gates Molded Coolant Hose 20703

The Gates Molded Coolant Hose 20703 is designed to provide reliable coolant flow in automotive cooling systems. Constructed from durable EPDM material, this radiator coolant hose offers precise fitment and long-lasting performance for various vehicle applications.

• Made from high-quality EPDM rubber for heat and chemical resistance
• Molded design ensures exact fit and secure connections
• End 1 inside diameter: 1.5 inches (38 mm)
• End 2 inside diameter: 1.87 inches (47 mm)
• Centerline length: 20.1 inches (511 mm)
• Does not contain a spring or quick connect fittings
• Non-modular hose with no branch quantity

Detailed Product Description

The Gates Molded Coolant Hose 20703 is engineered from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This molded radiator coolant hose features two different inside diameters—1.5 inches (38 mm) on one end and 1.87 inches (47 mm) on the other—allowing it to connect components with varying sizes securely. With a centerline length of 20.1 inches (511 mm), it fits specific cooling system layouts without the need for modifications. The hose is molded rather than modular, providing a precise shape that matches OEM specifications. It does not include springs or quick connect fittings, which simplifies installation and reduces potential failure points.

About the Molded Coolant Hose Product Line

The Gates Molded Coolant Hose line focuses on delivering hoses that are pre-shaped to exact OEM contours, ensuring proper fit and function in vehicle cooling systems. This product line emphasizes durability and compatibility, using EPDM material to withstand the thermal and chemical stresses typical in radiator coolant applications. The 20703 part number is part of this line, offering a reliable replacement option for vehicles requiring molded radiator hoses with specific diameter and length requirements.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses
• Resolving coolant leaks caused by hose degradation
• Addressing overheating issues due to restricted coolant flow
• Fixing improper hose fitment that leads to coolant system pressure loss
• Upgrading to a molded hose for improved durability and fit

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old hose to prevent burns
• Check hose connections for corrosion or damage before installation
• Use proper clamps to secure the hose ends and prevent leaks
• Verify the hose routing matches OEM specifications to avoid kinks
• Inspect the cooling system for other worn components during replacement

Quality Assurance and Warranty

Gates Molded Coolant Hose 20703 is manufactured to meet or exceed OEM standards for material quality and dimensional accuracy. The EPDM construction provides resistance to heat, ozone, and automotive fluids, contributing to long service life. While specific warranty details are not provided, Gates products typically come with a limited warranty covering defects in material and workmanship.