When it's hot out and you call on the air conditioning in your vehicle, you need it to work properly and cool down quickly. If your A/C is having issues in your Toyota, often times this relay is the culprit. It controls the A/C circuit in your vehicle This is a direct replacement OEM plug and play 4 terminal sealed relay that will plug directly into your vehicles socket. Backed by an 18 month . Replaces Toyota Part Number 90987-02028 Your satisfaction is our #1 concern, please don't hesitate to ask if you have any questions. We are proud to be a veteran owned small business and we will help you out any way we can. Due to the manufacturing process and the fact that we order these in bulk to give you a good price, the relays may have a few scuffs on them. However, these are brand new never used and will function as such, .