#2 Cylinder is on the Right and is the Front Cylinder. When facing the Tensioner's Hole, it is on the Left.Please study all pictures.-
#1 Cylinder is on the Left and is the Rear Cylinder. When facing the Tensioner's Hole, it is on the Right.Please study all pictures. 
Same as 12100-007-0100
FACING THE TENSIONER, THE TENSIONER IS ON THE LEFT SIDE OF THE CYLINDER
WHEN FACING TENSIONER, THE TENSIONER IS ON THE RIGHT SIDE OF THE CYLINDER
