What year transmissions fit a 2003 blazer?

The 2003 Chevrolet Blazer used a few different transmissions, depending on the engine and trim level. To know for sure which transmission fits *your* 2003 Blazer, you need to identify the engine. However, here's what's generally found:

* 4L60E 4-speed automatic: This was the most common transmission in the 2003 Blazer. Used with the V6 and possibly some V8 engines. You'll find many used 4L60E transmissions compatible if your's needs replacing, though year is less critical than the specific transmission code.

* 4L65E 4-speed automatic: A heavier-duty version of the 4L60E, potentially used with some V8 engines. Again, compatibility is more tied to the code than the year.

Therefore, providing the engine size (e.g., 4.3L V6, 5.3L V8) is crucial for accurate identification of the correct transmission. Don't rely solely on the year of a used transmission. You'll need to check the transmission's identification code against the code on your existing transmission to ensure compatibility. A parts store or a mechanic can help you identify your transmission and find compatible replacements.