Scion has many merits, while problems arise after its timing chain tensioner parts have been used for a long time. A Scion timing chain tensioner is used to ensure that the timing chain, crankshaft sprocket, and camshaft sprocket have the correct and necessary tension. Scion timing chain tensioner parts should be replaced every 80,000 to 120,000 miles. We give consumers reasonable and affordable shipping criteria. It is easy to buy needed Scion parts at nearly wholesale prices online with just a few clicks.