Gates 22437 Radiator Coolant Hose - Lower or Lower - Engine To Radiator

Gates 22437 Lower Coolant Hose

Gates 22437 is a molded radiator coolant hose built for lower cooling system routing on a wide range of GM trucks and SUVs. It uses EPDM and plastic construction with OEM-quality dimensions to match the original hose shape and fit.

For Chevrolet Silverado 1500, Tahoe, Suburban, and GMC Sierra or Yukon applications, this molded coolant hose helps restore proper coolant flow through the lower radiator circuit. The Gates Molded Coolant Hose line is built to cover upper, lower, bypass, heater, and other coolant hose applications with replacement-market coverage.

Key Features

• Molded lower radiator coolant hose for direct replacement use
• EPDM and plastic construction for cooling system service
• 1.52 in. end 1 inside diameter and 1.52 in. end 2 inside diameter
• 18 in. centerline length for the listed application geometry
• No spring, no modular hose sections, and no quick connect fittings
• Fits lower coolant hose applications on select Cadillac, Chevrolet, and GMC vehicles

Product Details

Gates 22437 is engineered as a molded coolant hose for lower radiator service on vehicles such as the Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and Cadillac Escalade. The molded shape helps match the factory hose routing, while the OEM-quality specification supports a proper replacement for aging or damaged coolant hoses. This part cross-references Dayco 71990 and Continental 62261 for the same application.

Common Problems This Hose Can Address

• Cracked or split lower radiator hose
• Coolant leaks at the hose body or bends
• Collapsed hose routing from heat and age
• Restricted coolant flow caused by hose deterioration
• Overheating concerns related to a failing lower coolant hose

Installation Notes and Tips

Verify the vehicle’s lower hose routing, end diameters, and centerline length before installation. Drain the cooling system as needed, inspect the radiator neck and engine connection points, and replace worn clamps if required by the application. Confirm fitment for the exact year, make, and model before service.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use. Part number 22437 is part of Gates’ molded coolant hose line, which covers a broad range of radiator, heater, bypass, and other coolant hose applications.