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Coolant Reservoir Tank
A coolant reservoir tank, also called a coolant reservoir reserve tank. It stores excess coolant when the engine heats up and sends it back to the radiator as the engine cools. If your coolant reservoir tank is cracked, leaking, or overflowing, it’s time for a replacement to avoid overheating or serious engine damage. FridayParts offers OEM-quality coolant reservoir tanks, you can find for your equipment here.
When to Replace a Coolant Reservoir Tank
Coolant tanks are made of plastic and are often exposed to high heat and pressure. Over time, they may crack or warp. Signs it’s time for a coolant reservoir tank replacement include:
- Constantly low coolant levels
- Visible coolant leaks
- Engine running hotter than normal
- Cracks or bulges in the tank
- Coolant overflowing when the engine is hot
If your coolant reservoir tank leaks, the rest of the cooling system can’t work properly—and that can cost you. So be sure to repair or replace it in time.
How the Coolant Reservoir Tank Works
The tank works hand-in-hand with components like the:
Radiator – Transfers heat away from the engine
Radiator Cap – Controls pressure and releases overflow into the tank
Coolant Hoses – Move coolant between parts
Water Pump – Keeps coolant circulating
Thermostat – Regulates coolant flow based on engine temperature
Fan and Fan Clutch – Assist with cooling during heavy use
Together, these parts prevent overheating and keep your engine running smoothly in demanding environments.
Coolant Reservoir Replacement Cost
Replacing a coolant reservoir tank is often affordable. Parts typically range from $26 to $399, depending on the model. Labor may cost more if done at a shop, but many owners choose to replace it themselves with a few basic tools. If you notice your coolant reservoir tank is cracked or swollen, don’t wait—replacing it early saves your engine.
Buy Aftermarket Coolant Reservoir Tank on FridayParts.com
Looking for a compatible replacement? FridayParts has you covered. We offer OEM-quality coolant reservoir tanks for brands like John Deere, Carrier, Yanmar, and Caterpillar (CAT). Our parts fit for:
- Heavy-duty use in excavators, tractors, trucks, and refrigeration units
- Fast shipping from our global warehouses
- One-year warranty and great customer support
- Reliable fit and function just like the original
- Hard-to-find models that other suppliers don’t carry
Buy now for a 90-day return and a one-year warranty. If you can't find what you need, please feel free to contact us.