all right, I think I have the bolt/s identified P/N 11-12-0-392-547. I will swing by the dealership tomorrow, hopefully they will have them on hand. I will do the easy one first, then make plans for opening up the valve cover and possibly replacing the other three. One last question, does anyone have an opinion on driving the vehicle with the broken bolt? It is supposed to get down to 30f tomorrow, making for a cold morning motorcycle ride.