Effortlessly compress and install piston rings with this dedicated Piston Ring Compressor Assembly Tool, tailored specifically for Dodge RAM Cummins 6BT 5.9L engines. Its robust design ensures durability while providing the precision needed for proper piston ring installation, promoting optimal engine performance and longevity. Crafted with a 102mm bore size, this tool is compatible with various Cummins models including 3.9/5.9/6T/6B/4B3.9-6BT5.9/QSB7-5.9L, and CAT C6.6. Made in China, the piston ring compressor installer tool is a must-have for any engine maintenance enthusiast seeking a reliable and efficient solution for their diesel engine.