Features: Professional Fuel Injector Nozzle Remover -- 7121 fuel injector puller tool is a removal tool specially designed for pencil-type fuel injectors nozzles. Help you pull out fuel injectors nozzles easily, remove fuel injector nozzles easily. Fitment -- Our nozzle puller widely Fit for Cat, Case, Caterpillar, GM, John Deere, Waukesha and White diesel engines. Fit for GM truck 5.7 liter diesel engine. This Nozzle Remover also used on construction and agricultural vehicles like tractors and other farming equipments, such as for White Farm Equipment diesels. .