O.S. 12 CV-R NITRO ENGINE. NEW NEVER HAS HAD FUEL IN IT. WILL NEED TO BE BROKE IN. NEW 2-SPEED SPUR GEAR AND CLUTCH. NEW MUFFLER. IT WILL NEED THE AIR FILTER. MOTOR IS NEW WITHOUT ORIGINAL BOX. PLEASE LOOK AT THE PICTURES AND FEEL FREE TO ASK ANY QUESTIONS. THANK YOU