5365-01-564-4490 CAT 168-2100 Spacer; Ring Caterpillar 1682100 Removed from New Engine Assembly before use. New Take-Off. Light Oxidation, Scratches/Chips in Paint May Be Present. Caterpillar Crankshaft Pulley / Damper Spacer Plate LVSR MKR18 3406E 3406C 3406B C-18 C-15 C-16 3408B 3408 C16 C15 R3C4