Hi Sue, I'm glad to assist you. As per checking, this fits a 1999 Dodge ram 1500. This will not work for 1989 year since that was the one on your selected Year, make and model. We do not carry the seat motor for your vehicle application-for the 1989. Still you can double check by following the steps below. I hope this helps. On the homepage, please enter your application, simply select your vehicle’s year, make, model, sub-model, and engine size and click “Go.” Once your application is selected, type the name of the part you need on the top search box(type "seat motor") and press enter. Once the part shows up on your screen (select what side), then, you’ll see a “Guaranteed to Fit, Direct fit” note/badge (in round green icon with a white check mark) if the part will fit 100%, and we recommend that you also double-check your vehicle fit details as well as the vehicle fitment information table on the product page.