Injector Sleeve Cup Remover Installer Tool for 3126B HEUI injector.Compatible with 3126B and C7/C9 engines.Not compatible with 3126 engine 12 valve head.Part numbers: 10R-0781, 10R0781, 1977107, 197-7107, 1986605, 198-6605, 199-60652225926, 222-5926, EX630781, 2272911, 8C0563, WT3126PD.Includes 1 injector sleeve installer tool, 1 injector sleeve remover tool, 6 injector sleeve cups, and 12 injector O-rings.Made with steel cone construction.Designed for use with 3126B HEUI injectors.Professional installation is recommended. Notice: This replacement item is produced by an independent supplier.All brand and model mentions are for compatibility purposes only.