Cat 3412 DITA - Complete Engine, Dyno Tested, All New Genuine CATERPILLAR Parts. CATERPILLAR 3412 Surplus Engine Engine For Sale And Exchange Worldwide. We Only Use All New Genuine CATERPILLAR Parts. We Work With International And Domestic Carriers That Allow Us To Transport Our Engines All Around The World. For More Information Please Dont Hesitate To Contact Us. Independent Rebuild Specialist 1 Building Relationships One Engine At A Time