If you've ever tried to find a harmonic balancer for the ES250, or the v6 toyota you'll know their nearly impossible to find and when you do, get ready to bend over. So here's what I did. I pulled the pulley off an 87 camry 2.0 liter 4 cylinder and compared them. There are two differences between the pulleys, the timing mark is in a different location, and the belt size has one rib less. So, set the engine to TDC, File on a new timing mark, with a razor knife carefully cut one rib off the V6 belt and voila, back on the road and running strong.