The BMW 635D is a version of the 6-Series. It is very popular in Europe, the Middle East and Asia. K&N has released a replacement air filter, product number 33-2943, for various models of the 6 and 5 series coupe with diesel engines. Simply remove the disposable air filter and replace it with the K&N air filter for excellent engine protection. There is no cutting or fitting required on this air filter.

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K&N air filters are designed to increase horsepower and acceleration. K&N has sold more than twenty million replacement air filters. K&N uses independent laboratories to help ensure that our products meet or exceed your high filtration demands. We also conduct our own testing at our in house testing laboratory. K&N manufacturers air filters that can last longer than your vehicle for applications around the globe.

K&N lifetime replacement air filters for street vehicles are washable and reusable and covered by our famous K&N Million Mile Limited Warranty.

The 33-2943 will fit the following vehicles:

2009 BMW 635D 3.0L Diesel
2009 BMW 535D 3.0L Diesel
2009 BMW 520D 2.0L Diesel
2008 BMW 635D 3.0L Diesel
2008 BMW 535D 3.0L Diesel
2008 BMW 520D 2.0L Diesel - from 9/07
2007 BMW 635D 3.0L Diesel
2007 BMW 535D 3.0L Diesel
2007 BMW 520D 2.0L Diesel
2006 BMW 535D 3.0L Diesel
2005 BMW 535D 3.0L Diesel
2004 BMW 535D 3.0L Diesel

Use the K&N application search to find all K&N products for your ATV, motorcycle, or vehicle then use the K&N dealer search to find a K&N dealer near you.