Siamak Nemati opened the scoring for the visiting team in the 41st minute and Mehdi Abdi made it 2-0 in the 78th minute.
Aref Rostami and Amir Hossein Hosseinzadeh scored two more goals in the last minutes to seal a 4-0 win for Tractor.
Shams Azar suffered a 2-1 home loss against Zob Ahan and Paykan defeated Esteghlal Khuzestan 1-0 in Ahvaz.
Tractor leads the table with 12 points out of six matches.