This extremely attractive Nissan OEM Key for the z32 300zx will add some zing to your existing keychain!
And yes! This key does work just fine for your 84-89 300zx. Nissan used the same style key design for many years in production.
Note - Please make sure you take your key to be cut by a professional key cutter. Places like Walmart or others tend to have more failed key cuts.
Failed cut keys are not guaranteed for warranty replacement.