Gates 31459 Fuel Cap Tester Adapter

Fuel Cap Tester Adapter for System Diagnostics

The Gates 31459 Fuel Cap/System Tester Adapter is built for use with radiator cap testers when checking fuel cap and fuel system sealing performance. Its tan body with a grey ring and Quick-On cam type supports fast attachment during diagnostic work on a wide range of vehicles, including Hyundai Palisade, Kia Soul, and Ram 2500 applications.

Key Features

• Fuel Cap Tester Adapter for radiator cap tester use
• Quick-On cam type for efficient tester connection
• Tan with grey ring finish for easy identification
• Gates 31459 part number for ordering and lookup
• Cross-references Motorad 12422S and Remy 12422 for the same application

Product Details

Gates Fuel Cap/System Tester Adapter 31459 is a diagnostic adapter used with radiator cap testers to evaluate fuel cap and system sealing on many domestic and import vehicles. Fitment coverage includes long-tail applications such as Fits 2022-2025 Hyundai Palisade, N/A; Fits 2022-2024 Kia Soul, N/A; Fits 2011-2021 Ram 1500, N/A; and Fits 2008-2012 Chevrolet Silverado 1500, N/A. The broad vehicle list also includes Kia K5, Hyundai Tucson, Dodge Grand Caravan, Jeep Wrangler, Ford F-150, and many others across 2008-2025 model years.

The Gates 31459 adapter is a practical service tool for technicians who need a direct connection between the tester and the cap/system being evaluated. The Quick-On cam design helps streamline repeated testing in busy shop environments.

Common Diagnostic Uses

• Fuel cap sealing checks during drivability diagnosis
• Pressure loss testing on fuel cap/system service work
• Verification of cap fitment after replacement
• Diagnosis of evaporative system-related sealing concerns
• Testing on vehicles such as Hyundai Elantra, Kia Forte, and Ram ProMaster City

Installation Notes and Tips

Use this adapter with radiator cap testers as specified by the manufacturer. Confirm the vehicle application before testing, especially on notes such as W/O Threaded Filler Neck, Early, or 1st Design listings. For best results, inspect the fuel cap and sealing surfaces before and after testing, and verify the adapter is fully seated with the Quick-On cam engaged.

Quality Assurance

Gates manufactures service and diagnostic components for professional automotive use. Part number 31459 is listed with confirmed vehicle fitment data and established interchange references for application matching.