If you're looking to replace your Nissan's CVT transmission, the average replacement cost is somewhere between $3,000 to $8,000. This huge variation in price is due to many factors. These include the specification and condition of the transmission itself. As well as, the shop, dealer, or technician that you've asked to perform the replacement. In most cases, the median CVT transmission replacement cost is closer to $3,000 and $4,000, especially for regular models like the Altima. If you're shopping around for a rebuilt or re-conditioned CVT instead, you might even be able to get one for closer to $1,000.