This is a brand new K&B .65 Sportster RC airplane engine. Never been fueled or mounted. Included with this engine is a factory K&B muffler, 2 12 x 5 wood props, 1 16 oz. gas tank and a Carl Goldberg 2 1/2 inch black plastic spinner. Your engine and muffler will come in a sealed bag as shown in the last picture below. The engine photographed is an identical engine that was taken out of the package for the photos. What you see here is what you get. A factory box is not included. This is a great engine made in the USA. It has a displacement of .65 CI, bore is 0.938, stroke is 0.94, horsepower is 1.1, RPM is 2000-12,500, weight is 17.5 oz., K&B part number is 5800. This is a great package with alot of value and power!