Gates 23403 Radiator Coolant Hose - Lower

Overview of Gates Molded Coolant Hose 23403

The Gates Molded Coolant Hose 23403 is designed for reliable cooling system performance in select Chevrolet and GMC trucks and SUVs. Engineered with durable EPDM material, this radiator coolant hose ensures proper coolant flow and heat resistance for vehicles like the Chevrolet C2500 and GMC K2500 Suburban.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and secure installation
• Centerline length of 21.2 inches (538 mm) for accurate routing
• End 1 inside diameter: 1.52 inches (39 mm); End 2 inside diameter: 1.77 inches (45 mm)
• Compatible with Chevrolet C2500, C2500 Suburban, C3500, GMC K2500, K2500 Suburban, and K3500 models

About the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered radiator hoses that are molded to exact specifications. This approach ensures consistent fitment and reliable coolant flow, reducing the risk of leaks and premature hose failure. The molded construction of part number 23403 provides a tailored fit for specific Chevrolet and GMC truck models, supporting efficient engine cooling under demanding conditions.

Detailed Product Description

The Gates Molded Coolant Hose 23403 is manufactured from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The hose features a molded shape that matches the original equipment specifications, eliminating the need for modifications during installation. With a centerline length of 21.2 inches (538 mm), it fits precisely within the cooling system layout of compatible Chevrolet and GMC trucks. The hose ends have inside diameters of 1.52 inches (39 mm) and 1.77 inches (45 mm), ensuring secure connections to radiator and engine fittings without the need for additional adapters or clamps beyond standard hardware.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Chevrolet C2500 and GMC K2500 models
• Addressing coolant leaks caused by hose degradation or swelling
• Restoring proper coolant flow to prevent engine overheating
• Eliminating hose collapse or blockage that restricts coolant circulation
• Upgrading to a molded hose for improved fit and durability over generic hoses

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose to avoid burns
• Inspect all hose clamps and replace if corroded or damaged
• Verify the hose orientation matches the molded shape for proper fit
• Use appropriate coolant compatible with EPDM hoses
• Check for leaks after installation by running the engine to operating temperature

Quality Assurance and Warranty

Gates Molded Coolant Hose 23403 is manufactured to meet or exceed OEM specifications for durability and performance. The EPDM material and molded design contribute to long service life under normal operating conditions. While specific warranty details are not provided here, Gates typically offers coverage against defects in material and workmanship. For warranty information, refer to Gates’ official documentation or contact authorized distributors.