Coolant Expansion Tank

Product Details

Maintaining total control over operating temperatures is critical on both the street and the track. The factory plastic coolant reservoir is a known wear item on modern BMW chassis, frequently failing at seam welds or hardening to the point of catastrophic failure. This Febi Bilstein coolant expansion tank offers direct-fit OEM replacement quality, engineered to withstand aggressive driving conditions, high thermal loads, and pressurized cooling environments. Built with a integrated level sensor, this tank installs seamlessly into the stock location to maintain exact factory dashboard monitoring capabilities. Eliminate cooling system weak points before your next track session or daily commute with a proven replacement built to perform.

Key Features

• Direct OEM-style fitment ensures painless installation into factory bracketry and quick-disconnect coolant hoses.

• Built to withstand demanding track-day heat cycles, high pressures, and engine bay vibrations.

• Pre-equipped with a factory-spec coolant level sensor to maintain complete OBD and instrument cluster functionality.

• Constructed from high-grade polymer plastic to prevent premature cracking and seam failures common in aged factory units.

• Essential preventive maintenance component for preserving overall cooling system health and engine reliability.

Specifications

• Brand: Febi Bilstein

• Manufacturer Part Number: 183544

• BMW Cross-Reference Part Numbers: 17 13 7 642 160, 17 13 7 609 468

• Product Category: Engine Cooling System Expansion Tank

• Level Sensor: Included

• Expansion Tank Cap: Not included

• Connector Terminal Count: 2-pin

• Item Weight: 0.78 kg (1.72 lbs)

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