Gates 21886 Radiator Coolant Hose - Upper

Reliable Radiator Coolant Hose for BMW 325i Series

The Gates Molded Coolant Hose 21886 is engineered to provide dependable cooling system performance for BMW 325i, 325is, and 325iX models. Designed with precision, this radiator coolant hose ensures proper coolant flow and system integrity under various operating conditions.

• Constructed from durable EPDM material for heat and chemical resistance
• Molded design for exact fit and secure installation
• End 1 inside diameter: 1.42 inches (36 mm)
• End 2 inside diameter: 1.5 inches (38 mm)
• Centerline length: 17.6 inches (447 mm)
• Contains no internal spring, ensuring smooth coolant flow
• Compatible with BMW 325i, 325is, and 325iX models

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that are molded to exact specifications for specific vehicle applications. This approach eliminates the need for multiple hose assemblies and reduces the risk of leaks or improper fitment. The 21886 part number is part of this line, offering a tailored solution for BMW cooling systems that require reliable, OEM-quality replacement hoses.

Product Details and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. The molded construction ensures the hose maintains its shape and fit, preventing kinks or collapse that could restrict coolant flow. With a centerline length of 17.6 inches (447 mm), it matches the original equipment dimensions for proper routing within the engine bay. The hose ends have inside diameters of 1.42 inches (36 mm) and 1.5 inches (38 mm), designed to connect securely to the corresponding radiator and engine fittings without the need for additional springs or quick connect fittings.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses on BMW 325i, 325is, and 325iX
• Resolving coolant leaks caused by hose degradation or swelling
• Preventing overheating issues due to restricted coolant flow
• Maintaining proper coolant system pressure and circulation
• Ensuring compatibility with OEM cooling system components

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 21886, ensure the engine is cool to avoid burns from hot coolant. Verify that the hose routing matches the original path to prevent interference with other engine components. Use appropriate clamps to secure the hose ends firmly, but avoid overtightening which can damage the hose. Inspect adjacent hoses and fittings for wear during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Gates manufactures the Molded Coolant Hose 21886 to meet or exceed OEM standards for durability and performance. The EPDM material and molded design contribute to a long service life under normal operating conditions. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support reliable vehicle operation.