Caterpillar 12M3, 140M3 & 160M3 Motor Graders Factory Service & Shop ManualCaterpillar 12M3, 140M3 & 160M3 Motor Graders Factory Service & Shop Manual Price listed in US Dollar: $49.00 Leave this field blank Complete workshop repair service manual with electrical wiring diagrams for Caterpillar 12M3, 140M3 & 160M3 Read more about Caterpillar 12M3, 140M3 & 160M3 Motor Graders Factory Service & Shop ManualCaterpillar 12M3, 140M3 & 160M3 Motor Graders Factory Service & Shop Manual