Four Seasons 26784 A/C System Valve Core and Cap Kit

Four Seasons AC System Seal Kit 26784

Restore service port sealing on select Mercedes-Benz and BMW A/C systems with the Four Seasons AC System Seal Kit 26784. This cap and valve kit is built for R12 and R134a refrigerant applications and uses aluminum construction with plastic caps in red and blue for straightforward identification.

The Four Seasons AC System Seal Kit line focuses on service-port sealing components for A/C maintenance and repair. Part number 26784 is a cap and valve core kit made for vehicles that use specific service port cap dimensions and valve core sealing requirements.

Key Features

• Part type: A/C system valve core and cap kit
• Brand line: Four Seasons AC System Seal Kit
• Refrigerant type: R12 and R134a
• Cap material: Plastic with red and blue color coding
• Kit style: Cap and valve assembly for A/C service ports
• Material: Aluminum
• Cross-reference: Global Parts Distributors LLC 1311573

Detailed Description

Four Seasons 26784 is an AC system seal kit for service ports on a wide range of Mercedes-Benz Sprinter, C-Class, E-Class, S-Class, SL-Class, and BMW 3 Series, 5 Series, 7 Series, X5, and Z3 applications. It is listed for vehicles using R134a service ports as well as older R12/R134a systems, making it a direct replacement choice for A/C service port cap and valve core sealing needs. This part cross-references Global Parts Distributors LLC 1311573 for the same application.

Use this kit when the A/C service port cap or valve core seal is worn, damaged, or no longer holding pressure properly. Part number 26784 is also referenced under Four Seasons 26784 and other interchange numbers for catalog matching.

What It Is Used For

• Replacing cracked or missing A/C service port caps
• Addressing refrigerant loss at the service port
• Restoring valve core sealing at the A/C access point
• Repairing damaged cap threads or sealing surfaces
• Servicing Mercedes-Benz Sprinter and BMW models with listed A/C ports

Installation Notes and Tips

Verify refrigerant type and service port style before installation. Confirm the cap inside diameter and valve core style against the vehicle’s original A/C service port hardware. Clean the service port area before installing the new cap and valve components to help ensure a proper seal.

Compatible With select 1992-2012 Mercedes-Benz and BMW applications, including 2010-2012 Mercedes-Benz Sprinter, 2003-2009 Dodge Sprinter 2500 and 3500, and numerous BMW 3 Series, 5 Series, 7 Series, X5, and Z3 models. Review the fitment list for exact year and model coverage.

Quality Assurance

Four Seasons supplies HVAC service components for automotive A/C repair and maintenance. Part number 26784 is cataloged as an AC system seal kit for listed applications and interchange references.