NEW NO BOX OLD STOCK MERCEDES-BENZ 164 REAR TRUNK MOTOR HYDRALIC RAM.   IF THE RAM IS LEAKING OR FAILED NOW YOU DON'T HAVE TO BUY THE ENTIRE PUMP ASSEMBLY.   THE ENTIRE PART NUMBER FOR PUMP AND RAM IS PART NUMBER #164-800-06-48 BUT THIS IS JUST THE RAM WITHOUT THE PUMP.   NEEDED A PUMP AND DIDN'T NEED THE RAM SO THIS IS THE LEFT OVER FROM NEW STOCK PART #164-800-06-48.   IF YOUR TIRED OF YOUR TAILGATE NOT WORKING ON YOUR 2006-2011 THIS MAY BE YOUR ANSWER IF YOUR RAM IS LEAKING OR FAILED.