Britpart Coolant Expansion Tank Reservoir

The Britpart Coolant Expansion Tank Reservoir (also called a coolant overflow tank, coolant recovery bottle or radiator expansion tank) is a replacement part for the engine cooling system. It holds the extra coolant that expands as the engine heats up. It also helps keep system pressure and fluid level correct through repeated heat cycles.

Key Features:

• Gives heated coolant room to expand, so the cooling system isn't overstressed
• Supplies coolant back to the system as the engine cools, helping keep the level correct
• Made as a direct replacement for a cracked, leaking or discolored original tank
• Offers a clear way to check the coolant level
• Backed by Britpart, a well-known aftermarket supplier of replacement parts for Land Rover and other British and European vehicles

Many original plastic tanks crack or leak with age and heat. Replacing the tank restores reliable coolant storage and helps protect the engine from overheating. Installation is usually straightforward: disconnect the coolant hose, remove the mounting hardware, and fit the new tank. Some versions use a coolant level sensor, which may need to be moved over from the old tank. Tank design, sensor, cap and accessory details vary by part number, so check the individual item listing for what is included.