Those arrested have been identified as Saleem - a resident of Delhi, Mohseen, Sachin Choudhary and Pankaj - all residents of Meerut and aged between 25 and 32 years, they said.
"Police got a tip-off that some wanted vehicle-lifters were coming towards Shakti Khand-3 near Shiv temple last night. They would commit crime in Delhi-NCR," said a senior police officer.
A trap was laid and all four accused were arrested.
Police has recovered 18 stolen motorbikes, two scooty and a country-made pistol from their possession.
"We are now interrogating them about hideouts of their accomplices, who would be arrested soon," officer added.