How do you ID the tranny without the ID plate?

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I just bought a 2wd 2003 Sorento,I am changing the auto trans fluid and filter. The filter listed by the parts houses is the wrong one. The right one is a NAPA part #ATP14271. I have a list of vehicles (but no tranny ID) that this filter fits and my vehicle is not on the list. The ID plate on the passenger side of the tranny says it's an AISIN model 30-40LE. My vehicle doesn't appear on this list either. Is there another way to ID this tranny? This info is critical for fluid type and quantity and for torque specs.