Browse Caterpillar 3126B Fuel Injectors for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 9 listings. Caterpillar 3126B Fuel Injector pricing ranges from $50 to $328 based on recent marketplace data. Filter by condition, price, or year to find the right Caterpillar 3126B Fuel Injector.