Shop used Caterpillar 3406 Wiring Harnesses on MyLittleSalesman.com . Compare active listings with prices from $2,000 to $2,000. Sellers include Holst Truck Parts, Badger Truck Parts Ltd, and Rocky Mountain Truck Parts. Filter by condition, price, or year to find the Caterpillar 3406 Wiring Harness that fits your job.