This high-quality aftermarket thermostat is a direct replacement for OEM part number 11531437040. It is designed to regulate engine coolant flow and maintain correct engine operating temperature, helping prevent overheating or overcooling on the compatible BMW models listed below.
Key Features:
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Direct replacement for OE part number 11531437040
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Aftermarket brand reference: Topran 501145
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Cooling system thermostat for BMW petrol engines
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Helps maintain stable operating temperature for efficient performance
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Supports proper heater function and emissions control
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OE-style fit for straightforward installation
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Built for long service life under normal road conditions
Compatible With:
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BMW 7 Series E38 Saloon – 728i, 728iL (1995-2001)
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BMW 5 Series E39 Saloon, Touring – 520i, 523i, 525i, 528i, 530i, 540i (1995-2004)
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BMW 3 Series E46 Saloon, Coupe, Convertible, Touring, Compact – 320i/320Ci, 323i/323Ci, 325i/325Ci/325ti/325xi, 328i/328Ci, 330i/330Ci/330xi (1998-2007)
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BMW Z3 E36 Roadster, Coupe – 2.0i, 2.2i, 2.8i, 3.0i (1995-2003)
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BMW X5 E53 SUV – 3.0i (2000-2006)
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BMW 7 Series E65/E66/E67 Saloon – 730i, 730Li (2003-2008)
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BMW Z4 E85 Roadster – 2.2i, 2.5i, 3.0i (2003-2005)
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BMW 5 Series E60 Saloon – 520i, 525i, 530i (2001-2005)
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BMW 5 Series E61 Touring – 525i (2004-2010)
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BMW X3 E83 SUV – 2.5i, 3.0i xDrive (2004-2006)
Engine Codes:
This thermostat fits the following BMW inline-6 petrol engines:
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M52 engines: M52B20, M52B25, M52B28
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M52TU engines: M52TUB20, M52TUB25, M52TUB28
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M54 engines: M54B22, M54B25, M54B30
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M56 engine: M56B25
Year Range:
1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Fitment Note:
This is an aftermarket replacement part, not a genuine BMW component.
