Gates 21897 Radiator Coolant Hose - Upper

Overview of Gates Molded Coolant Hose 21897

The Gates Molded Coolant Hose 21897 is designed for reliable cooling system performance in select Ford and Mazda vehicles. Engineered with durable EPDM and plastic materials, this radiator coolant hose ensures proper coolant flow and system integrity for models like the Ford Ranger and Mazda Navajo.

• Constructed from EPDM and plastic for heat and chemical resistance
• Molded design for precise fit and secure connections
• End 1 inside diameter: 1.25 inches (32 mm)
• End 2 inside diameter: 1.38 inches (35 mm)
• Centerline length: 26 inches (660 mm)
• Contains no spring or quick connect fittings
• Compatible with Ford B4000, Explorer, Ranger and Mazda Navajo

About the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to exact specifications, eliminating the need for bending or shaping during installation. This product line enhances coolant system reliability by providing consistent hose geometry and fitment, reducing the risk of leaks and premature wear. The 21897 part benefits from this molded design, ensuring compatibility and durability in the cooling systems of Ford and Mazda trucks and SUVs.

Detailed Product Description

The Gates Molded Coolant Hose 21897 is a radiator coolant hose crafted from EPDM rubber and plastic components, materials known for their resistance to heat, ozone, and automotive fluids. The hose features a molded shape with a centerline length of 26 inches (660 mm), designed to fit specific coolant routing paths without modification. The hose ends have different inside diameters—1.25 inches (32 mm) on one end and 1.38 inches (35 mm) on the other—to match the radiator and engine connections precisely. This hose does not include springs or quick connect fittings, simplifying installation and maintenance.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Ford B4000 and Ranger models
• Addressing coolant leaks caused by hose degradation in Mazda Navajo and Explorer vehicles
• Restoring proper coolant flow to prevent engine overheating
• Eliminating coolant hose collapse or deformation under pressure
• Ensuring secure coolant system connections without the need for additional fittings

Installation Notes and Tips

Before installation, verify the hose dimensions and fitment with your vehicle’s specifications. The molded design of the Gates 21897 hose allows for direct replacement without bending or trimming. Ensure all clamps and connections are clean and secure to prevent leaks. It is recommended to drain the coolant system before removing the old hose and to refill and bleed the system after installation to avoid air pockets.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21897 to meet or exceed OEM standards for durability and performance. The use of EPDM and plastic materials provides resistance to heat, pressure, and automotive fluids, contributing to long service life. While specific warranty details are not provided here, Gates typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.