Gates 22554 Radiator Coolant Hose - Heater To Tank

Gates 22554 Molded Coolant Hose Overview

The Gates 22554 molded coolant hose is built for heater-to-tank cooling system routing on a wide range of GM trucks and SUVs. It uses EPDM and plastic construction and follows an OE-style molded shape for a direct replacement on applications such as Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade.

Gates Molded Coolant Hose products are application-specific and reflect the modular hose approach used in modern cooling systems. This line is engineered around the original routing and integrated component layout found on the vehicle, helping maintain proper coolant flow and fitment in the engine bay.

Key Features

• Part number 22554 molded radiator coolant hose for heater-to-tank routing
• Application-specific shape for GM truck and SUV cooling systems
• EPDM and plastic construction for coolant service
• Modular hose design with one branch configuration
• OE-style replacement for vehicles that use molded coolant hose routing
• Cross-reference: Dorman - OE Solutions 626-553

Detailed Product Description

This Gates 22554 hose is a molded coolant hose designed for vehicles that route coolant from the heater circuit to the tank through a shaped hose assembly. It measures approximately 19.1 inches centerline length and uses 1-inch, 19 mm, 3/4-inch, and 16 mm end dimensions as listed in the product data. The molded design helps match the original hose path, which is important in tight engine compartments where straight hose sections will not follow the factory routing.

Compatible With 1999-2014 Chevrolet Silverado 1500, Heater To Tank; 2000-2014 GMC Sierra 1500, Heater To Tank; and 2002-2014 Cadillac Escalade, Heater To Tank. It also covers related GM applications including Silverado HD, Sierra HD, Tahoe, Suburban, Yukon, Yukon XL, Avalanche, Hummer H2, and Escalade EXT. Part number 22554 is a practical OE-style replacement when the original molded hose is cracked, swollen, or leaking.

Common Cooling System Issues

• Coolant seepage at a cracked or aged molded hose
• Loss of heater circuit flow from hose deterioration
• Improper routing after a previous repair with the wrong hose shape
• Softening, swelling, or splitting from heat and coolant exposure
• Fitment problems on heater-to-tank hose runs in GM trucks and SUVs

Installation Notes and Tips

Verify the vehicle’s heater-to-tank hose routing before installation and compare the molded shape, end sizes, and branch layout to the removed part. Check adjacent clamps, fittings, and nearby plastic components for wear or damage before reassembly. Because this hose is molded to application-specific routing, correct orientation during installation is important for proper clearance and coolant flow.

Quality Assurance

Gates is a recognized aftermarket supplier in modular coolant hose assemblies, and this hose is manufactured to align with OE-style specifications for the listed applications. The Gates 22554 part number is also used across multiple interchange references for the same application, supporting accurate replacement selection.