The Bronx will get three new bus routes as part of the MTA’s new plan to overhaul the borough’s bus network — but will lose 400 bus stops, officials announced Tuesday.

Beginning sometime next year, Bronxites will be able to take the new Bx25 between Bedford Park and northern Co-Op City, and the M125 between The Hub and Manhattan’s West Side.

The agency also plans to split the existing BxM4 Bronx-to-Manhattan express bus in two. The BxM5 will take over the northern leg along East 233rd Street and Katonah Avenue, while the new BxM4 will run south of Mosholu Parkway.

But more frequent and faster bus service requires sacrifice, officials said — in the form of fewer stops.

The move will bring average distance between stops in the Bronx closer to international standards, officials said — from 882 feet to 1,092 feet.

“Were we to strictly apply best practice for bus stop spacing, that number would be even greater,” MTA transit chief Andy Byford said.

“Each stop, we’re looking at between 20 seconds — maybe even a minute… that soon adds up.”

Overall, the bus network redesign — which aims to improve service through straighter routes and fewer stops — will add more frequent service to nine corridors.

No routes are proposed for elimination. One, the Bx38, had been on the chopping block, but transit officials opted to keep it in response to concerns from Co-Op City residents.

Other changes could still be made to the plan, pending feedback from the public.

The plan will also be up for a vote from the MTA board, spokeswoman Amanda Kwan said.