Shop used and remanufactured Caterpillar 3412E Engines on MyLittleSalesman.com . Compare active listings with prices from $21,500 to $79,995. Sellers include Diesel Sales, 4-Trucks Enterprises, Adelmans Truck Parts, and more. Filter by condition, price, or year to find the Caterpillar 3412E Engine that fits your job.