Designed to safely remove injectors from cylinder heads Puller includes 2 Flange Nuts size M12 x 1.75 Some engines may need part number 12-453-01-01 (not included) to assist with injector removal on engines equipped with a composite valve cover Compatible with select Navistar engines: 2007 MaxxForce 11, 2007 MaxxForce 13, 2010 MaxxForce 11, 2010 MaxxForce 13, 2010 MaxxForce 15, 2013 N10 w/SCR, 2013 N13 w/SCR, 2013 N9 w/SCR, 2015 N13 w/SCR, 2017 International A26, 9000i Series Similar to Navistar OE tool number ZTSE4770