Originally Posted by Mitch@Trek

On your bike, the BB width is correct at 86.5mm which is paired with your SRAM S350 Crankset. For a replacement BB, you can order part number 00.6415.033.000 which is the one you linked.

Tapping out the BB with a removal tool is easy and expect it to shoot across the room. For installing, using a bearing press it best as it will aid both sides to enter into the frame straight. Wheels Manufacturing makes one that isn't too costly if you like to wrench at home. Otherwise, it is a quick job at your local Trek dealer!