BMW Heater Coolant Pipe / Line (RETURN) 11537502793

OEM Part #: 11-53-7-502-793 (11537502793)

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Heater coolant pipe/line (return) for select BMW models, including 750i, 750Li (2006-2008), X5 (2000-2006), 745i, 745Li (2002-2005), Alpina B7 (2007-2008), and 550i, 650i (2006-2010). This part is located in the engine bay and is responsible for returning coolant from the heater core to the engine, ensuring effective temperature regulation. Commonly replaced when experiencing coolant leaks or reduced heating performance. Compatible with engine codes NB33, NB53, NW53, EH73, EH13, EA53, EK73, EK13, EB53, GL63, HL83, HL43, GN63, HN83, FB53, and FA93. Interchangeable with part number 7502793.

Specifications

Specifications for Heater Coolant Pipe / Line (RETURN) 11537502793
Fits Vehicle Model545i, 550i, 645Ci, 650i, 745i, 745Li, 750i, 750Li, Alpina B7, X5
Fits Vehicle MakeBMW
OEM Part No11-53-7-502-793 (11537502793)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 47 vehicle configurations across 1 make, 2000-2010.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

BMW

  • 545i 2004-2005 · 2 variants
  • 550i 2006-2010 · 5 variants
  • 645Ci 2004-2005 · 4 variants
  • 650i 2006-2010 · 10 variants
  • 745Li 2002-2005 · 4 variants
  • 745i 2002-2005 · 4 variants
  • 750Li 2006-2008 · 3 variants
  • 750i 2006-2008 · 3 variants
  • Alpina B7 2007-2008 · 2 variants
  • X5 2000-2006 · 10 variants
View all 47 vehicle configurations
Full vehicle fitment list for Heater Coolant Pipe / Line (RETURN) 11537502793
Year Make Model Trim Engine Note
2000 BMW X5 SUV 4.4L V8
2001 BMW X5 SUV 4.4L V8
2002 BMW 745i Sedan 4.4L V8
2002 BMW 745Li Sedan 4.4L V8
2002 BMW X5 SUV 4.4L V8
2003 BMW 745i Sedan 4.4L V8
2003 BMW 745Li Sedan 4.4L V8
2003 BMW X5 SUV 4.4L V8
2004 BMW 545i Sedan 4.4L V8
2004 BMW 645Ci Convertible 4.4L V8
2004 BMW 645Ci Coupe 4.4L V8
2004 BMW 745i Sedan 4.4L V8
2004 BMW 745Li Sedan 4.4L V8
2004 BMW X5 SUV 4.4L V8
2004 BMW X5 SUV 4.8L V8
2005 BMW 545i Sedan 4.4L V8
2005 BMW 645Ci Convertible 4.4L V8
2005 BMW 645Ci Coupe 4.4L V8
2005 BMW 745i Sedan 4.4L V8
2005 BMW 745Li Sedan 4.4L V8
2005 BMW X5 SUV 4.4L V8
2005 BMW X5 SUV 4.8L V8
2006 BMW 550i Sedan 4.8L V8
2006 BMW 650i Convertible 4.8L V8
2006 BMW 650i Coupe 4.8L V8
2006 BMW 750i Sedan 4.8L V8
2006 BMW 750Li Sedan 4.8L V8
2006 BMW X5 SUV 4.4L V8
2006 BMW X5 SUV 4.8L V8
2007 BMW 550i Sedan 4.8L V8
2007 BMW 650i Convertible 4.8L V8
2007 BMW 650i Coupe 4.8L V8
2007 BMW 750i Sedan 4.8L V8
2007 BMW 750Li Sedan 4.8L V8
2007 BMW Alpina B7 Sedan 4.4L V8 Supercharged
2008 BMW 550i Sedan 4.8L V8
2008 BMW 650i Convertible 4.8L V8
2008 BMW 650i Coupe 4.8L V8
2008 BMW 750i Sedan 4.8L V8
2008 BMW 750Li Sedan 4.8L V8
2008 BMW Alpina B7 Sedan 4.4L V8 Supercharged
2009 BMW 550i Sedan 4.8L V8
2009 BMW 650i Convertible 4.8L V8
2009 BMW 650i Coupe 4.8L V8
2010 BMW 550i Sedan 4.8L V8
2010 BMW 650i Convertible 4.8L V8
2010 BMW 650i Coupe 4.8L V8

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