The CL9 designation refers to the 2004–2008 Acura TSX, the North American version of the Honda Accord platform. It isn’t a single year, but a chassis code used for a span of model years.
What the CL9 designation means
In Honda/Acura’s internal naming system, CL9 identifies a specific chassis variant associated with the TSX, which is built on the Honda Accord platform for the North American market. The CL9 label signals a particular generation and trim configuration within that family, rather than a solitary year.
Model years covered by CL9
To understand the time frame of the CL9 code, here are the model years typically associated with this designation.
- 2004
- 2005
- 2006
- 2007
- 2008
These years mark the span when the TSX (the Acura version of the Accord) used the CL9 chassis code, offering a 2.4-liter inline-4 engine and choice of manual or automatic transmissions, with sport-oriented features that distinguished it from the standard Accord lineup.
How CL9 fits within the broader Accord family
Beyond the CL9 label, Honda’s Accord family uses various chassis codes for different markets and generations. The CL9 is specifically tied to the North American TSX variant that sits on the Accord platform from the mid-2000s, rather than to other Accord trims or later generations.
Summary
In short, the CL9 is not a single model year but a chassis designation for the 2004–2008 Acura TSX, the North American expression of the Honda Accord platform during that period. If you’re researching or shopping for a CL9, you’re looking at a TSX from 2004 through 2008.


