Gates 21590 Radiator Coolant Hose - Lower

Reliable Radiator Coolant Hose for Porsche 924 and 944

The Gates Molded Coolant Hose 21590 is engineered to provide dependable cooling system performance for Porsche 924 and 944 models. Constructed from durable EPDM material, this radiator coolant hose ensures long-lasting resistance to heat and coolant fluids.

• Made from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and leak prevention
• Centerline length of 12.5 inches (318 mm) for accurate installation
• End 1 inside diameter: 1.38 inches (35 mm)
• End 2 inside diameter: 2.5 inches (64 mm)
• Contains no spring or quick connect fittings

About the Gates 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 is designed to maintain consistent coolant flow and reduce the risk of leaks or hose failure, making it suitable for precision applications such as the Porsche 924 and 944 cooling systems.

Product Details and Specifications

This radiator coolant hose, part number 21590, is molded from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. The hose features a centerline length of 12.5 inches (318 mm), with two different inside diameters: 1.38 inches (35 mm) on one end and 2.5 inches (64 mm) on the other. The absence of springs and quick connect fittings simplifies the hose design, ensuring a secure and straightforward connection within the cooling system.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses on Porsche 924 and 944
• Prevention of coolant leaks caused by hose degradation
• Restoration of proper coolant flow to maintain engine temperature
• Elimination of hose collapse or deformation under pressure
• Ensuring compatibility with original equipment specifications

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 21590, ensure the hose is properly seated on the radiator and engine fittings to prevent leaks. Verify that the hose routing matches the original configuration to avoid kinks or undue stress. Use appropriate clamps to secure the hose ends firmly but avoid overtightening, which can damage the hose or fittings.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21590 to meet or exceed OEM standards for durability and performance. The EPDM material and molded construction contribute to a reliable service life under normal operating conditions. Warranty details should be confirmed with the product documentation or supplier.