Gates 31431 Engine Cooling System Pressure Tester Adapter

Cooling System Tester Adapter for Threaded 48mm Caps

The Gates 31431 radiator cap and cooling system tester adapter is built for use with a radiator cap/cooling system pressure tester when a threaded 48mm I.D. connection is required. It helps you test cooling system components across a wide range of GM, Chrysler, and other vehicle applications, including Chevrolet Equinox, Malibu, Traverse, and Silverado platforms.

Gates’ radiator cap/cooling system tester adapter line is made to expand tester coverage by matching multiple component sizes. This threaded 48mm I.D. adapter is part number 31431 and is used with the Gates cooling system tester setup to service a broad range of passenger vehicles and light trucks.

• Attachment type: cooling system adapter
• Threaded 48mm I.D. design
• Used with a radiator cap and cooling system tester
• Supports testing across multiple component sizes
• Cross-reference part numbers include Dorman - HELP 46825 and Anchor 3127

Detailed Product Overview

Use the Gates 31431 adapter when your cooling system pressure tester needs a threaded 48mm I.D. connection for radiator cap testing. This adapter is listed for a wide range of vehicles, including Chevrolet Equinox, Malibu, Traverse, Silverado 1500, GMC Terrain, and GMC Sierra applications, along with many other GM and Chrysler-era platforms. If you service cooling systems on Chevrolet Malibu, GMC Canyon, or Ram 1500 models, this adapter helps match the tester to the component being checked.

This part cross-references Dorman - HELP 46825 and Anchor 3127 for the same application.

Common Uses

• Diagnosing radiator cap sealing concerns
• Checking cooling system pressure retention
• Testing threaded cap-style cooling system components
• Servicing vehicles with 48mm I.D. threaded adapter requirements
• Supporting cooling system checks on Chevrolet Equinox, Malibu, and Traverse models

Installation Notes and Tips

Confirm the tester connection style before use and verify that the adapter thread size matches the cooling system component being tested. Install the adapter securely on the radiator cap/cooling system tester, then follow the pressure test procedure specified for the vehicle. For best results, compare the adapter fit against the component before pressurizing the system.

Quality Assurance

Gates manufactures this adapter as part of its radiator cap and cooling system tester adapter line for professional cooling system service. Part number 31431 is built for repeat use in diagnostic testing across a broad range of listed vehicle applications.