The NYPD runs on . . . bodega coffee.

The police boycott of Dunkin’ Donuts is apparently heating up, as a sergeant was spotted Sunday walking into the 73rd Precinct station house with trays full of what appeared to be generic, corner-market brew.

“No D&D in the 7-3,” he proudly announced.

The brew-haha began last Sunday when a worker at a Dunkin’ Donuts/Baskin-Robbins at 1993 Atlantic Ave. in Bedford-Stuyvesant refused to scoop ice cream for two 73rd Precinct detectives — allegedly because they were cops.

Police union heads called for a boycott of the national chain, and the movement has since percolated throughout the department.

Asked for directions to a Dunkin’ Donuts on Sunday, a cop patrolling Union Square said, “I’m not allowed to do that.”

A manager at the Brooklyn franchise apologized, but parent company Dunkin’ Brands claimed the store’s confusing layout led the cops to order at a closed register — an explanation that police unions have called “an insult.”