Browse Caterpillar 3406 Engine Plumbing for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 5 listings. Caterpillar 3406 Engine Plumbing pricing ranges from $38 to $150 based on recent marketplace data. Filter by condition, price, or year to find the right Caterpillar 3406 Engine Plumbing.