Four Seasons 26781 A/C System Valve Core and Cap Kit

AC System Seal Kit for Audi and Volkswagen

Restore service access and sealing performance in the A/C system with the Four Seasons AC System Seal Kit, part number 26781. This cap and valve A/C system seal kit is built for R12 and R134a refrigerant systems and is listed for a wide range of Audi Q7, Audi TT, Volkswagen Jetta, Volkswagen Golf, and related applications.

Key Features

• Four Seasons AC System Seal Kit, part number 26781
• Cap and valve core kit for A/C service points
• Refrigerant type support: R12 and R134a
• Plastic black caps with aluminum construction
• Cap and valve style for A/C system sealing service
• Fits a broad range of Audi and Volkswagen vehicles, including Q7, TT, Jetta, Golf, Passat, and Beetle applications

Product Details

The Four Seasons AC System Seal Kit line focuses on sealing and service-point protection for automotive air conditioning systems. Part 26781 combines cap and valve core service components in a cap-and-valve style kit, helping maintain proper closure at the A/C ports during routine maintenance or repair. The black plastic caps and aluminum construction support a service-ready fit for vehicles using either R12 or R134a refrigerant.

This part cross-references Global Parts Distributors LLC 1311571 for the same application. It is listed across many fitments, including 2007-2015 Audi Q7, 2007 Audi A3, and 2006-2010 Volkswagen Jetta, making it a relevant search match for Audi Q7 A/C valve core and cap kit, Volkswagen Golf AC system seal kit, and Volkswagen Beetle valve core service needs.

Common Uses

• Replacing worn or leaking A/C service caps
• Servicing valve core sealing points on the high and low side
• Restoring proper closure at refrigerant access ports
• Addressing A/C maintenance issues on Audi and Volkswagen platforms
• Supporting refrigerant service on R12 and R134a systems

Installation Notes

Verify the vehicle’s refrigerant type and service-port configuration before installation. Match the cap inside diameter and valve core style to the existing A/C ports, and confirm fitment against the specific year, make, and model listed for your application. For best results, inspect the surrounding service port area for damage or contamination before replacing the seal components.

Quality Assurance

Four Seasons supplies HVAC service components for automotive A/C repair and maintenance. Part 26781 is cataloged as an AC System Seal Kit with defined material and refrigerant specifications for application matching.