Browse Caterpillar 3306 DI Engine Plumbing for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 7 listings. Caterpillar 3306 DI Engine Plumbing pricing ranges from $75 to $200 based on recent marketplace data. Filter by condition, price, or year to find the right Caterpillar 3306 DI Engine Plumbing.