Original BMW Expansion Tank for Z4 (2003–2008)

BMW specifies this Original BMW Coolant Expansion Tank for BMW Z4 from 2003–2008. In this application, it stores expanding coolant and provides the system’s fill and recovery point. Applications include Z4. BMW backs Original BMW Parts in the U.S. with a two-year, unlimited-mileage limited warranty.

Technical Details

• Component: Coolant Expansion Tank
• Manufacturer: BMW
• Manufacturer part number: 17-11-7-573-751
• Primary function: stores expanding coolant and provides the system’s fill and recovery point
• Production range: 2003–2008
• Vehicle applications: BMW Z4
• Listed models: Z4
• Listed submodels: Coupe 3.0si, Roadster 3.0i, and Roadster 3.0si

Fitment & Compatibility

The table below lists the supported years and models; compare it with the vehicle before ordering. Match the engine, hose or connection layout, cooling-system equipment, and production date. Need a second fitment check? Send PMB Performance the VIN. Our team has more than 20 years of experience identifying European vehicle applications.