- Part of your engine's cooling system
- Stores and regulates excess coolant
- Replace when cracked or leaking
The Engine Coolant Reservoir is a crucial component of your Nissan's cooling system. Coolant absorbs the heat produced during combustion to help keep your engine cool. Coolant performs on a cycle, which is why you need an Engine Coolant Reservoir. As your engine heats up, the coolant expands, and excess fluid is pushed into the Engine Coolant Reservoir. As your engine cools, this coolant is pulled back into the radiator. The Engine Coolant Reservoir is also where new coolant is added before it flows to the radiator.
The Engine Coolant Reservoir is typically made of plastic, which makes it susceptible to cracking as time passes. There are a few signs of an Engine Coolant Reservoir issue to watch out for. If you're constantly needing to add new coolant, there could be a crack or small leak. You may notice puddles of greasy yellow, pink, or green liquid underneath the front of your vehicle. This is a sign you have a coolant leak. When not caught fast enough, a failing Engine Coolant Reservoir could also lead to your engine overheating.
Your owner's manual contains information about where your Nissan Engine Coolant Reservoir can be found and how to check the coolant level. Coolant reaches extremely high temperatures and can be a burn risk. Remember to let your radiator and engine completely cool down before you remove the reservoir cap. If your Engine Coolant Reservoir is leaking or cracked, you should replace it immediately to help prevent engine damage. The coolant system can be dangerous to work with, so it's recommended you let professionals handle the replacement.
Your Nissan Engine Coolant Reservoir is a simple but important part of your cooling system. When it's time to replace your Engine Coolant Reservoir, you need a reservoir designed for your specific vehicle. Order genuine OEM parts to find the right fit.
This Engine Coolant Reservoir, part 21710EZ40A, fits Nissan Titan 2016-2020. Check the What This Fits tab for fitment details.
TANK ASSY-RADIATOR RESERVOIR
Fits Titan