Gates 23591 Radiator Coolant Hose - Upper

Overview of Gates Molded Coolant Hose 23591

The Gates Molded Coolant Hose 23591 is designed for reliable cooling system performance in select Infiniti vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent coolant flow and heat resistance for models like the Infiniti FX35, FX37, M35h, M37, Q70, Q70L, and QX70.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and secure installation
• Centerline length of 16.1 inches (409 mm) for accurate replacement
• End 1 and End 2 inside diameters both 1.33 inches (34 mm) for consistent coolant flow
• Does not contain a spring or quick connect fittings, ensuring compatibility with original equipment

Details on the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle applications. This eliminates the need for bending or shaping during installation, reducing the risk of leaks or improper fitment. The 23591 part benefits from this molded construction, providing a direct replacement for the radiator coolant hose in compatible Infiniti models.

Technical Description and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. The hose features a centerline length of 16.1 inches (409 mm), with both ends having an inside diameter of 1.33 inches (34 mm), ensuring proper coolant flow and system pressure maintenance. The absence of springs and quick connect fittings means it matches the original equipment design, making it suitable for vehicles that require a molded hose without additional hardware.

Applications and Common Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Infiniti FX35, FX37, M35h, M37, Q70, Q70L, and QX70
• Prevention of coolant leaks caused by hose degradation or swelling
• Restoration of proper coolant circulation to avoid engine overheating
• Elimination of hose collapse or kinking due to flexible molded design
• Addressing coolant system failures related to hose material fatigue

Installation Notes and Tips

• Ensure the engine is cool before removing the old coolant hose to prevent burns
• Verify the hose orientation matches the original molded shape for proper fit
• Inspect hose clamps and replace if corroded or damaged to maintain a secure seal
• Check coolant levels and refill as necessary after installation
• Perform a pressure test on the cooling system to confirm leak-free installation

Quality Assurance and Warranty

Gates Molded Coolant Hose 23591 is manufactured to meet or exceed OEM specifications for durability and performance. The EPDM material and molded construction provide resistance to heat and coolant chemicals, contributing to long service life. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship.