Need to replace the CV axle on your Infiniti Q50? This is the front right (passenger side) axle shaft for AWD models from 2014 through 2024. It fits the 2.0L, 3.0L, 3.5L, and 3.7L engines – pretty much covers all the V6 variants. The specs match the OEM: compressed length is about 23.7 inches, with 25 splines inboard and 27 outboard. Reference numbers include NCV39051, 80-5449, NI-8640, etc. Made from solid steel, it's built to handle the power and provide reliable performance. If you're getting clicking noises when turning, vibration on acceleration, or a torn CV boot, this axle should fix it. Always double-check your exact model and year before ordering, but if it matches, it's a direct replacement. Installation is straightforward for a mechanic or a confident DIYer with the right tools. Keep your Q50's all-wheel drive system working smoothly and safely. A quality aftermarket part that saves you money compared to the dealer.