The Washer 15.2x24x1 is the lowest priced item on this 013 Head: Timing schematic.
With a quantity of seven pieces, the Screw is the most used part in the 013 HEAD: TIMING diagram.
twenty-three components are listed in the schematic for this M620s 2003 Eu (monster 620s) 9151-1411b 013 Head: Timing .