Yes, but do you know which is the number 1 lead? If you replace the leads in the wrong order, your car won't fire.
There is a firing order ..i.e 1-4-3-2 This varies depending on the number of cylinders and layout..
You haven't said what make of vehicle you have, but if you do a google search for (example) 'firing order for 1998 Jeep Grand Cherokee' you will find the firing order.
You should also be easily able to find a diagram that shows exactly what is what. The image below is generic. It is NOT your car.
A way to check is just to offer the leads up to the engine block. You may be able to identify by the shape and length of lead as to which plug it goes to.
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