Does the last 4 characters of a model number matters when buying fan replacement parts?

I'm considering replacing my laptop fan, the laptop model is RZ09-0483UWJ4. I'm wondering if the ending of the model number actually matters? (UWJ4) after some searching online some of them mention only the (RZ09-0483) part and some of them mention it in full but doesn't match mine.

Any of you tried buying parts before is there anything that I should pay attention to?