Stant 12427 Fuel Cap Tester Adapter

Fuel Cap Tester Adapter for Stant Systems

The Stant 12427 Fuel Cap/System Tester Adapter is a color-coded plastic adapter used with Stant fuel cap testers for accurate fuel cap and evaporative system testing. It supports a wide range of vehicle applications, including Chevrolet Silverado, GMC Sierra, Toyota Camry, Mazda CX-5, and Nissan Altima fitments.

Key Features

• Brand: Stant
• Part Number: 12427
• Fuel Cap/System Tester Adapter for use with Stant fuel cap testers
• Color coded for quick identification during testing
• Durable plastic construction for shop use
• Fits a broad range of domestic and import vehicles across 2005-2020 model years

Product Details

Stant Fuel Cap/System Tester Adapter 12427 is part of the Fuel Cap/System Tester Adapter line and is built for technicians who need the correct adapter for fuel cap leak checks and system testing. The color-coded design helps identify the proper adapter faster, while the durable plastic body is suited for repeated use in service environments. This adapter is listed for applications such as Fits 2018-2020 Chevrolet Equinox, N/A; Fits 2018-2020 GMC Terrain, N/A; Fits 2016 Toyota Camry, N/A; and Fits 2014-2016 Mazda CX-5, N/A. It also covers additional applications including Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, Nissan Rogue, and Volvo XC60. This part number, 12427, is used where the specified tester adapter is required for the vehicle’s fuel cap/system test setup.

What It Helps Address

• Incorrect adapter selection during fuel cap testing
• Slow identification of the proper tester adapter in the shop
• Fuel cap/system test setup issues on listed Chevrolet, GMC, Toyota, Mazda, Nissan, and Volvo applications
• Need for a durable plastic adapter for repeated diagnostic use
• Service bay delays when testing evaporative emissions-related fuel cap systems

Installation Notes and Tips

Use this adapter only with Stant fuel cap testers. Verify the vehicle year, make, and model against the fitment list before testing. Some applications include notes such as purple, light green, threaded, or date-specific requirements, so confirm the exact vehicle configuration before use. For example, the adapter is listed for Fits 2015 Chevrolet Express 3500, N/A, for fuel caps without stainless tether, and Fits 2005 Toyota Corolla, N/A, with threaded filler neck notes. The part number 12427 should be matched to the tester and vehicle application before beginning diagnosis.

Quality Assurance

Stant supplies this adapter as a dedicated component for its fuel cap testing system. The durable plastic construction and color-coded identification support consistent shop use across the listed applications.