Problems, Maintenance, and Repair (Gen 2)
So I bought valve stem seals Fel-pro SS72878-3 from O'reilly, for 2004 Sienna. They need to be ordered and you wait for 3+ days.
They came in two plastic bags, 12 in each. There is also a plastic installation tubing in each bag.
There is no words on bags which is intake vs exhaust...