These are the pieces that will make your coupler swap go a lot easier. This will include a 60cc syringe, tube, and RTV. The syringe and tube will allow you to suck out the old oil so you don't have to pull the snout off and let the old oil drain down the front of the engine block. The old oil will smell horrible for days. It also includes a small tube of silicone to reseal the snout to snout housing connection.