Gates 21363 Radiator Coolant Hose - Lower - Engine To Pipe

Overview of Gates Molded Coolant Hose 21363

The Gates Molded Coolant Hose 21363 is engineered for reliable radiator coolant transfer in various vehicle applications. Constructed from durable EPDM material, this molded radiator coolant hose offers precise fitment and long-lasting performance for compatible makes and models.

• Material: EPDM for heat and chemical resistance
• Molded design for exact fit and reduced leaks
• End 1 inside diameter: 2 inches (51 mm)
• End 2 inside diameter: 2.36 inches (60 mm)
• Centerline length: 5.9 inches (150 mm)
• Contains internal spring for shape retention
• No quick connect fittings or branches

Detailed Product Description

This Gates Molded Coolant Hose 21363 is designed to maintain optimal coolant flow between the radiator and engine components. The EPDM construction provides resistance to high temperatures, ozone, and coolant chemicals, ensuring durability under demanding conditions. The molded shape guarantees a precise fit, minimizing the risk of leaks and improving system reliability. The hose features an internal spring to prevent collapse under vacuum or pressure fluctuations, maintaining consistent coolant circulation.

The hose ends measure 2 inches (51 mm) and 2.36 inches (60 mm) inside diameter respectively, accommodating specific radiator and engine connections. With a centerline length of 5.9 inches (150 mm), this hose is suitable for applications requiring a compact coolant transfer solution. The absence of quick connect fittings and branches indicates a straightforward installation in systems designed for molded hoses.

Applications and Common Issues Addressed

• Replacement of worn or cracked radiator coolant hoses
• Resolving coolant leaks caused by hose degradation
• Preventing hose collapse under engine vacuum conditions
• Maintaining proper coolant flow to avoid engine overheating
• Ensuring compatibility with specific radiator and engine fittings

Installation Notes and Tips

When installing the Gates Molded Coolant Hose 21363, ensure the hose is properly seated on radiator and engine fittings matching the specified inside diameters of 2 inches and 2.36 inches. Verify the molded shape aligns with the vehicle’s coolant routing to avoid kinks or stress points. The internal spring helps maintain hose shape, but care should be taken to avoid excessive bending during installation. Use appropriate clamps rated for coolant hoses to secure connections and prevent leaks.

Quality Assurance and Warranty

Gates is a recognized manufacturer of automotive cooling system components, and the Molded Coolant Hose line is designed to meet OEM specifications for durability and performance. The EPDM material and molded construction contribute to extended service life under typical operating conditions. While specific warranty details for part number 21363 are not provided here, Gates products generally come with manufacturer-backed quality assurance to support reliable operation in compatible vehicles.