OEM is short for Original Equipment Manufacturer. This section includes parts for the Animal OHV Briggs & Stratton Engine. The Animal Briggs & Stratton Engine Model series we carry is the 124332 Series. The Model/Type 124332 includes the Animal, LO206, and the JR206 From Entry Level Racing on up to Open Class Racing Briggs & Stratton has you covered. They have stood the test of time and is a true Animal when it comes to Racing.