The O-ring,2.5x1.5 is the cheapest item from this partsfiche.
The sub assemblies and components that make up this Front Brake Caliper (1) include this Caliper Sub Assy,, the most expensive part.
A sample from the products for the Front Brake Caliper (1) include: Pad Spring, Boot B, Seal Set,piston, Bolt,flg.dr 8x32.