Browse Caterpillar 3406 Wiring Harnesses on MyLittleSalesman.com and compare listings with prices from $2,000 to $2,000. Sellers include Holst Truck Parts, Rocky Mountain Truck Parts, and Badger Truck Parts Ltd. Filter by condition, price, or year to quickly narrow down to the right Caterpillar 3406 Wiring Harness.