Moroso Performance Aluminum Expansion Tank – E46 M3

Product Details

If you have ever experienced a leaking plastic BMW expansion tank you will realize the value of this aluminum version straight away. Even if a failure has not happened to you, it’s easy to tell this tank is much stronger and more durable than the plastic used in the stock design. The original BMW plastic tanks suffer from leaks and failures with no warning. While being lightweight and recyclable, the design and construction of the stock tank is just not up for reliable long-term use.

Moroso coolant expansion tanks are all pressure tested for guaranteed leak-free operation.

Features:

• Direct bolt-in replacement to stock, cracked, or discolored tanks
• Fabricated Aluminum for strength, factory tanks fail after repeated high heat situations & age
• No cutting of factory hoses is required and accepts the factory clip-on hose
• Included is a Moroso Part No. 63324 racing radiator cap that operates in the same pressure range as the factory cap
• The Moroso radiator cap mounts to a billet aluminum neck that will not strip out like plastic threaded necks
• Easy to read slight level is included