Unfortunately, having a new transmission installed is never a cheap endeavor—expect a 2014 Nissan Sentra transmission replacement to cost somewhere between $4,500 and $4,900, although the exact cost will largely depend on your exact location and the repair shop you visit.
Most of the bill goes towards the physical parts, which usually cost between $3,100 and $3,350, or roughly 69% of the total cost. You may, however, be able to find a cheaper replacement transmission—it all depends on what’s available.
The other $1,400 to $1,550 pays for the mechanic’s labor—that may seem incredibly high, but replacing a 2014 Nissan Sentra’s transmission is no easy task and may take multiple days to complete.