Gates 51555 Radiator Coolant Hose - Upper

Reliable Radiator Coolant Hose for Lexus NX200t and NX300

The Gates Molded Coolant Hose 51555 is designed to provide a durable and precise fit for Lexus NX200t and NX300 models. Made from EPDM material, this radiator coolant hose ensures reliable performance under various operating conditions.

• Constructed from high-quality EPDM for heat and chemical resistance
• End 1 inside diameter: 1.31 inches (33 mm)
• End 2 inside diameter: 1.44 inches (37 mm)
• Centerline length of 23.57 inches (599 mm) for exact fitment
• Does not contain a spring, ensuring consistent flexibility

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses molded to exact specifications for specific vehicle applications. This approach reduces the risk of leaks and fitment issues, providing a reliable coolant transfer solution. The 51555 part number is part of this line, tailored specifically for Lexus NX200t and NX300 models to maintain optimal cooling system performance.

Detailed Product Description

This radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. The hose features two different inside diameters—1.31 inches (33 mm) on one end and 1.44 inches (37 mm) on the other—allowing it to connect seamlessly between components with varying sizes. With a centerline length of 23.57 inches (599 mm), it fits precisely within the cooling system layout of the Lexus NX200t and NX300. The absence of an internal spring means the hose maintains flexibility without compromising structural integrity.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Lexus NX200t and NX300
• Prevention of coolant leaks caused by hose degradation
• Restoration of proper coolant flow to avoid engine overheating
• Elimination of hose collapse or kinking due to flexible EPDM construction
• Ensuring secure connections between radiator and engine components

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 51555, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose orientation matches the original part, noting the different inside diameters on each end. Use appropriate clamps to secure the hose without over-tightening, which can damage the EPDM material. Inspect adjacent components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 51555 to meet or exceed OEM specifications for durability and performance. The EPDM material is selected for its 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.