Fuel Injector 242-0857 Compatible for Caterpillar CAT Engine C9Fuel Injector 171 9710 0R 9348 for Caterpillar CAT Engine 3126 3126B 3126E C7 Condition: New Part Note: For the new part, we advise you replace the whole set together, Because the oil output and atomization concentration of Genuine and parts are different, they cannot be mixed to work for the same engine. Replace Part Number: 171 9710,145 9360,173 1012,173 4566,173 9267,173 9268,173 9379,222 5965,0R 9348,