Based on the single-unit Shaoshan 3, the SS4 has thyristor control, a continuous power rating of 6,400 kw, and can run at 100 km/h. Weight is 184 tonnes. The prototype Shaoshan 4 was built in Hunan province.

• 韶山4型机车在韶山3型单机组机车的基础上采用了可控硅控制器，连续功率为6400千瓦，时速可达到100公里，重量为184吨，是湖南制造的。