Moroso Coolant Expansion Tank BMW E46 M3 (2001-2006) 63793

Fitment Information BMW M3 E46 (2001, 2002, 2003, 2004, 2005, 2006) Specs & Features Direct bolt-in replacement to stock 2 piece plastic tank 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 This aluminum tank can be polished, chromed, powder coated or left as-is for a race look