Please allow 4 to 5 days before this can be shipped. No expedited shipping available. This pump fits W116 300SD, W126 300SD, and the turbo W123 1981 to 1985. New check valves and seals installed along with a brand new Bosch hand primer pump. A new gasket and sealing compound are also included. Who else will include a new razor blade to get the old gasket off? This unit mounts to the bottom of the Engine-driven injection pump. Comes with special locking nuts and an installation tool. We will include the full overhaul video instructions that explain the removal process.