Upgrade your For J e ep Grand Cherokee or RAM 1500 3.0T diesel engine with this premium 6-piece piston set. These precision-engineered pistons come complete with piston rings and maintain the standard 83mm size specification. Compatible with part numbers 68147228AA, 68147229AA, and 55577331, these pistons are designed to meet the demanding requirements of your vehicle's engine. Each piston is manufactured to exact specifications to ensure proper fit and optimal performance. Perfect for engine rebuilds or replacements, this complete set provides everything needed for a proper piston upgrade. These pistons help maintain proper compression and efficient engine operation in your 3.0T diesel engine. For best results, professional installation is recommended to ensure proper fitment and engine timing.