Replacing the bearings in the idler pulleys and tensioner pulley will save you slightly $$ and is ecosystem pleasant. However, Toyota isn't going to promote substitution bearings; It's important to purchase the pulley having an set up bearing, or for the tensioner, you are compelled to purchase your complete assembly. https://card-directory.com/listings755639/not-known-facts-about-bill-collection-services-in-anaheim