Restore smooth, vibration-free power delivery to your front wheel with the TrakMotive CV Axle Shaft NI-8640. This front right (passenger-side) CV axle transfers torque from the transaxle to the wheel hub while its constant-velocity joints flex through steering and suspension travel. It's a direct-fit replacement for the 2016-2019 INFINITI Q50 and 2017-2019 INFINITI Q60 — see the Buyer's Guide tab for engine-level fitment.
Torn CV boots, clicking during turns, or a vibration under acceleration are common signs a front CV axle may need replacing; if a worn axle is the cause, this unit replaces it. Replace it as a complete assembly for a straightforward install.
Interchange: 259640 · 391004HK0A · C91004HK0K
This part cross-references / interchanges with the following part numbers:
What vehicles does this CV axle fit?
It's a direct-fit replacement for the 2016-2019 INFINITI Q50 and 2017-2019 INFINITI Q60. Check the Buyer's Guide tab to confirm the match for your vehicle.
Which side does the NI-8640 install on?
It is the front right (passenger-side) CV axle shaft for the listed applications.
What does a CV axle shaft do?
It transfers torque from the transaxle to the wheel hub, with constant-velocity joints that flex as the wheels steer and the suspension moves.
What are signs my CV axle may need replacing?
Clicking noises during turns, a torn CV boot leaking grease, or vibration under acceleration. Diagnose the cause first, since these symptoms can have other sources.
Does this axle work with ABS?
Yes. Per the manufacturer, ABS axles fit non-ABS applications unless otherwise noted.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
