Support smooth, stable rotation at the front wheel end with the Mevotech BXT Wheel Bearing and Hub Assembly MB30312, a front hub bearing unit engineered in-house for increased durability and performance. It fits many vehicles, among them the 2014-2022 Infiniti Q60, 2014-2024 Infiniti Q50 and 2015 Infiniti Q40, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
- Increased part durability: Roll forming locks the internal components for a set preload right out of the box, and the stiffer assembly is designed to reduce vibration and improve part life.
- Pre-filled with premium grease: The premium lubricant withstands high temperature and extreme pressure, resists corrosion and reduces friction.
- Premium seal for contaminant protection: A multi-point sealing system provides layers of defense to keep contaminants out and the vital grease in.
- Exact fit: Engineered for an exact fit and intended for smooth, trouble-free operation at the wheel end.
Mevotech backs this assembly with extensive in-house and third-party durability testing. If you are replacing a worn wheel bearing on a 2014-2024 Infiniti Q50, watch for signs that the front hub assembly may need attention. These include a growling or humming noise that changes with speed, looseness or play at the wheel, or vibration through the steering wheel. Diagnose the cause first, because these symptoms can also come from tires or other suspension parts. For the correct torque values and fasteners, and for whether any fasteners may be reused, consult the vehicle service information.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is MB30312 the right 2014-2024 Infiniti Q50 wheel bearing?
MB30312 is listed as a front wheel bearing and hub assembly for the 2014-2024 Infiniti Q50, as well as the 2014-2022 Infiniti Q60 and 2015 Infiniti Q40. Check the "Vehicles it fits" section to confirm your vehicle.
What does a wheel bearing and hub assembly do?
It combines the bearing and hub in one unit. The wheel mounts to it, and it lets the wheel rotate smoothly at the front wheel end.
Does this hub assembly come greased and sealed?
Yes. It is pre-filled with premium grease that withstands high temperature and extreme pressure. A multi-point sealing system helps keep contaminants out and the grease in.
How is the bearing preload set?
Mevotech uses roll forming to lock the internal components, so the preload is set right out of the box. The stiffer assembly is designed to reduce vibration and improve part life.
What are signs a front wheel bearing may need replacing?
Common signs include a growling or humming noise that changes with speed, play or looseness at the wheel, or vibration. Diagnose the cause first, since tires and other parts can cause similar symptoms.
