Will adding Toyota/TRD parts to your vehicle void your factory warranty?
No! The parts themselves come with a 12 Month warranty. If they are installed at a dealership, then they also fall under your factory warranty. This means that the parts will then have a 3 year/36,000 mile warranty from the vehicles in-service date.
Will installing the parts myself void their warranty?
No! The parts themselves will still have a 12 month warranty against any manufacturers defects. For a warranty claim on these parts, the dealership will need to do an inspection on the parts to be sure that it is a defect of the part and not an installation issue. The warranty will only cover the parts.
Do I need to have Sparks Toyota/Sparks Parts do the warranty because I purchased the part through them?
You do not. Because the part is a national Toyota part, any dealership can do the warranty work. It is actually best to go to your local dealership because Toyota's warranty only covers the parts. They do not cover labor or shipping. They will only cover labor if the dealership did the install and the part was defective.