For 60 Series 14L J-46929 EGR Piston Ring Compressor Remover and Installer Tool. Application include 60 Series 14.0L 2004-2011 with updated forged steel piston part # 23537126 or 224-3864. This Tool is Used to Assist During Piston Installation On 60 Series 14.0L Forged Steel Pistons.