TANK, COOLANT EXPANSION, BMW 1 SERIES, 3 SERIES, 05-13 335, Z4

63851

Fits; 1 Series E82/E88 (08-13), 3 Series E90/E91/E92/E93 (06-13, Non-M), Z Series E89 (09-16), X1 Series E84 (09-16) 

• Direct bolt-in replacement for stock, 2 piece plastic tank
• Fabricated Aluminum for strength, factory tanks fail after repeated high heat situations & age
• Features billet aluminum mounting tab/bleeder assembly for strength and precision
• No cutting of factory hoses is required and accepts the factory clip-on hose
• Moroso part No. 63324 racing radiator cap included; operates in the same pressure range as the factory cap
• Moroso radiator cap mounts to a billet aluminum neck that will not strip out like plastic threaded necks
• This aluminum tank can be polished, chromed, powder coated or left as-is

Note; tank does not have provision for OE coolant level sensor, it is designed for competition use where dash warning light is not required. Warning light can be turned off by shorting wires to level sensor.

Not for use with models with N55 engine.