You'll need to find out the engine size, it's on a decal under the hood, usually right on the underside of the hood. If you can't find it get the VIN number off the dash pad, its located on the left front where the windshield meets the dash pad. When you bring it home you'll see the size, it is under a black cover that runs from the air intake to the air cleaner box or housing as it is referred to. It will have metal clips or plastic screws that hold the lid on, you can just unclip it and bring it up by bending the rubber air hose it is attached to. The old one just lifts out and put the new one in the same way. If your not sure look in the section on how to replace iot here.