The Certified Parts Store's Standard Warranty covers only the sold replacement parts over the period of 12 months (365 Days) from the date of the order was shipped. The Certified Parts Store's Extended Warranty covers only the sold replacement parts as after Standard Warranty on the part expires. The duration of the store's Extended Warranty varies from category to category and may last for up to 36 months. The Certified Parts Store's Extended Warranty is also sold as add-on warranty in addition to the stores' sold parts' existing warranty. The add-on Extended Warranty can be purchased for up to 36 months.