Gates 21623 Radiator Coolant Hose - Lower

Overview of Gates Molded Coolant Hose 21623

The Gates Molded Coolant Hose 21623 is designed for reliable cooling system performance in select Ford and Mazda vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent fit and function for models like the Ford Explorer and Mazda Navajo.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and leak prevention
• Centerline length of 16.6 inches (422 mm) for accurate installation
• End 1 inside diameter: 1.46 inches (37 mm)
• End 2 inside diameter: 1.5 inches (38 mm)
• Compatible with Ford B4000, Bronco II, Explorer, Ranger and Mazda Navajo
• Part number 21623 for easy identification and replacement

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 reduces the risk of leaks and ensures a secure connection within the cooling system. The 21623 hose benefits from this design philosophy, providing a reliable replacement part for specific Ford and Mazda models requiring exact fitment.

Detailed Product Description

This radiator coolant 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. The molded construction eliminates the need for multiple hose clamps and reduces potential weak points. With a centerline length of 16.6 inches (422 mm) and slightly differing inside diameters on each end (1.46 inches and 1.5 inches), the hose is designed to fit specific radiator and engine connections precisely. It does not contain any internal springs or quick connect fittings, simplifying installation and maintenance.

Common Applications and Problem Solving

• Replacement for cracked or leaking radiator coolant hoses in Ford B4000 and Bronco II
• Restores proper coolant flow in Mazda Navajo and Ford Explorer cooling systems
• Addresses hose swelling or softening due to heat exposure
• Prevents coolant leaks caused by deteriorated or damaged hoses
• Ensures secure coolant routing in Ford Ranger models

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model before installation
• Ensure the cooling system is cool and depressurized prior to hose removal
• Inspect hose connections and clamps for wear and replace if necessary
• Align the molded hose ends carefully to avoid twisting or kinking
• Check for leaks after installation by running the engine to operating temperature

Quality Assurance and Warranty

Gates Molded Coolant Hose 21623 is manufactured to meet or exceed OEM specifications for durability and performance. The EPDM material and molded design contribute to a long service life under normal operating conditions. While specific warranty details are not provided here, Gates typically offers coverage against manufacturing defects. Consult product documentation or authorized distributors for warranty information.