OTC Universal Cylinder Liner Puller Features and Benefits: Quickly removes heavy-duty cylinder liners Similar to Porta-Tool OE tool number : PT-6400-C Cylinder bore diameter: 3-7/8" to 6-1/4" Liner wall thickness: 0.273" min Sleeve depth: Up to 15" Vehicle applications:Mack,Volvo,Detroit,International,Cummins (except L10 and C series),Cat Engines 3176, 3196, 3300 Series, 3400 Series, 3500 Series, C10, C12, C15, C16,Maxxforce DT, DT360, DTA360, DTA466, DT466, DT530 (PLN), DT466E, DT530E, DT570, HT570 Designed to be used with an impact wrench for quick cylinder liner removal. The spring loaded puller arms automatically adjust to fit the liner for a fast set-up time. The low profile of this tool allows work in areas where space is limited. The tool accommodates bore diameters from 3-7/8" to 6-1/4", sleeve depths to 15", and liner wall thickness of 0.273" min. Drive screw hex size; 1-1/8". Works on select Mack, Volvo, Detroit Diesel, International, Cummins, Navistar and other Caterpillar engines. Similar to Porta-Tool OE tool number PT-6400-C. Warranty: Lifetime warranty does not cover abuse