Gates 20431 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Overview of Gates Molded Coolant Hose 20431

The Gates Molded Coolant Hose 20431 is engineered for reliable cooling system performance in Dodge trucks. Designed specifically for Dodge D250, D350, W250, and W350 models, this radiator coolant hose ensures proper coolant flow and system integrity.

• Constructed from durable EPDM material for heat and chemical resistance
• Molded design for precise fit and reduced installation time
• Contains an internal spring to prevent hose collapse under vacuum
• End 1 inside diameter: 2 inches (51 mm)
• End 2 inside diameter: 2.25 inches (57 mm)
• Centerline length: 16.4 inches (417 mm)
• Compatible with Dodge D250, D350, W250, and W350 models

Detailed Product Description

The Gates Molded Coolant Hose 20431 is a radiator coolant hose crafted from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features a molded construction, which provides a precise shape tailored to the cooling system layout of Dodge D250, D350, W250, and W350 trucks. The molded design helps ensure a secure fit and reduces the risk of leaks or hose misalignment.

Equipped with an internal spring, this hose maintains its shape and prevents collapse during engine vacuum conditions, supporting consistent coolant flow. The hose ends have different inside diameters—2 inches (51 mm) on one end and 2.25 inches (57 mm) on the other—allowing for proper connection to the radiator and engine fittings. With a centerline length of 16.4 inches (417 mm), it fits the specified Dodge models without modification.

About the Molded Coolant Hose Product Line

The Gates Molded Coolant Hose line is designed to provide reliable, application-specific hoses that meet OEM specifications. These hoses are molded to exact shapes to match vehicle cooling system requirements, reducing installation complexity and improving system durability. The 20431 part is part of this line, offering a tailored solution for Dodge heavy-duty trucks.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Dodge D250, D350, W250, and W350
• Prevention of coolant leaks caused by hose degradation or improper fit
• Elimination of hose collapse under vacuum conditions due to internal spring support
• Restoration of proper coolant flow to maintain engine temperature regulation
• Addressing coolant system failures related to hose material breakdown

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose to avoid burns
• Check hose ends and clamps for corrosion or damage and replace if necessary
• Verify the correct orientation of the molded hose before installation
• Use appropriate clamps to secure the hose ends and prevent leaks
• Inspect the cooling system for other worn components during installation

Quality Assurance and Warranty

Gates Molded Coolant Hose 20431 is manufactured to meet stringent quality standards, ensuring durability and performance in demanding automotive environments. The EPDM material and molded design contribute to long service life. Warranty coverage details should be confirmed with the product documentation or supplier.