Four Seasons 26776 A/C System Valve Core and Cap Kit

Reliable A/C System Seal Kit for GM Vehicles

The Four Seasons AC System Seal Kit 26776 provides essential components to maintain the integrity of your vehicle's air conditioning system. Designed for select Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models, this kit ensures proper sealing and valve function for R12 and R134a refrigerants.

• Includes valve cores and caps in red, blue, and black plastic
• Durable aluminum material for valve cores
• Compatible with R12 and R134a refrigerants
• Specific cap inside diameter for precise fit
• Cap and valve kit style for comprehensive sealing

About the Four Seasons AC System Seal Kit Line

The AC System Seal Kit line by Four Seasons focuses on providing reliable sealing solutions for automotive air conditioning systems. This kit, part number 26776, includes both valve cores and caps designed to prevent refrigerant leaks and maintain system pressure. The use of aluminum valve cores combined with plastic caps in multiple colors supports easy identification and durability across various GM vehicle models.

Detailed Product Description

This A/C system valve core and cap kit is engineered to fit a wide range of General Motors vehicles, including Buick models like the Century and LeSabre, Cadillac DeVille and Eldorado, Chevrolet Silverado and Camaro, GMC Sierra and Yukon, as well as Oldsmobile and Pontiac models such as the Bonneville and Grand Prix. The kit supports both R12 and R134a refrigerants, making it versatile for older and newer A/C systems. The plastic caps come in red, blue, and black, each with a specific inside diameter to ensure a secure seal. The aluminum valve cores provide corrosion resistance and long-lasting performance, helping to maintain system efficiency and prevent refrigerant loss.

Common Applications and Issues Addressed

• Sealing leaks in A/C valve cores
• Replacing worn or damaged valve caps
• Maintaining proper refrigerant pressure in R12 and R134a systems
• Preventing contamination and moisture entry into the A/C system
• Supporting system integrity in GM trucks, SUVs, and passenger cars

Installation Notes and Tips

When installing the Four Seasons AC System Seal Kit 26776, ensure the vehicle’s A/C system is depressurized and properly evacuated before removing old valve cores and caps. Use the correct tools to avoid damaging the valve stems. Match the cap colors to the corresponding service ports for easy identification during maintenance. Verify the cap inside diameter fits securely to prevent leaks. After installation, test the system for leaks and proper refrigerant pressure.

Quality Assurance and Warranty

Four Seasons manufactures this AC System Seal Kit with quality materials such as aluminum and durable plastic to meet OEM standards. The kit is designed for reliable sealing performance in a variety of GM vehicles. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in material and workmanship, ensuring confidence in product durability and function.