What is the part number for suspension bushings?

Suspension bushings are going to be vehicle dependent, so without that, the part numbers aren't going to be very helpful. That said, Autozone carries an Energy Suspension Bushing Kit for $175 with the part number 18105G. A little bit about bushings in general: They're rubber pads attached to Your vehicle's suspension system, and are typically placed anywhere on Your suspension where two parts of metal make a joint. The reason to use bushings is to makes ure those metal surfaces don't grind against each other, causing stress and friction. While You can usually use universal flange type bushings on many manufacturer's vehicles, this isn't always going to be the case.