Non Pressurized Coolant Reservoir With Cap For Cadillac, Chevrolet, And GMC Models Plug And Play Direct Replacement Plastic Expansion Tank Easy Install Durable Engine Coolant Overflow Reservoir

Direct replacement coolant reservoir for GM cars
✔️ Single unit plug-and-play plastic expansion tank with cap

This non-pressurized coolant reservoir with cap is a direct replacement designed to fit GM vehicles’ cooling systems. It’s commonly used as the engine’s overflow tank to collect excess coolant and maintain proper pressure and levels during thermal cycles. Easy to install with a plug-and-play approach, it’s built to withstand under hood heat and vibration.

✅ Direct replacement matches the original fit and function for GM models
✅ Plastic construction stands up to under-hood heat and vibration
✅ Includes cap; non-pressurized overflow reservoir with easy install
✅ Color: White for quick visual check during service
✅ Lightweight, durable design engineered for longevity

💡 What is a coolant reservoir used for in a car cooling system?

In short, it’s the handy overflow tank that stores excess coolant and helps keep the cooling system stable.

- Maintains proper coolant levels and allows expansion in the engine cooling system - Captures overflow coolant and returns it to the cooling circuit - Handy direct replacement for GM vehicles with simple install