Gates 21866 Radiator Coolant Hose - Upper

Overview of Gates Molded Coolant Hose 21866

The Gates Molded Coolant Hose 21866 is designed specifically for Nissan 300ZX models, providing reliable radiator coolant flow. Constructed from durable EPDM material, this molded radiator coolant hose ensures consistent performance under various operating conditions.

• Made from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and secure installation
• End 1 inside diameter: 1.34 inches (34 mm)
• End 2 inside diameter: 1.56 inches (40 mm)
• Centerline length: 9.1 inches (231 mm)
• Contains no internal spring, ensuring smooth coolant flow
• Compatible with Nissan 300ZX radiator systems

Detailed Product Description

The Gates Molded Coolant Hose 21866 is engineered to meet the specific cooling system requirements of the Nissan 300ZX. Its EPDM construction offers excellent resistance to heat, ozone, and coolant chemicals, which helps maintain hose integrity over time. The molded design ensures a precise fit with no need for additional modifications, reducing installation time and potential leaks. With an inside diameter of 1.34 inches (34 mm) on one end and 1.56 inches (40 mm) on the other, this hose accommodates the radiator connections accurately. The 9.1-inch (231 mm) centerline length fits the OEM specifications, ensuring proper coolant flow and system efficiency.

About the Molded Coolant Hose Product Line

The Gates Molded Coolant Hose line focuses on delivering pre-formed hoses that match exact vehicle specifications. This eliminates the need for bending or shaping during installation, which can compromise hose integrity. The molded design of the 21866 part number provides a reliable, leak-resistant connection tailored for the Nissan 300ZX cooling system.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Nissan 300ZX vehicles
• Resolving coolant leaks caused by hose degradation or improper fit
• Preventing overheating issues due to compromised coolant flow
• Eliminating hose collapse or kinking that restricts coolant circulation
• Maintaining system pressure and preventing coolant contamination

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose to avoid burns
• Check radiator and engine fittings for corrosion or damage before installation
• Use proper clamps to secure the molded hose ends without over-tightening
• Verify the hose routing matches OEM specifications to prevent interference
• Inspect the new hose for any manufacturing defects prior to installation

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21866 to meet stringent quality standards, ensuring durability and performance in demanding automotive environments. The EPDM material and molded construction contribute to long service life. While specific warranty details may vary, Gates typically offers coverage against manufacturing defects, supporting reliability for Nissan 300ZX owners.