BMW Steering Knuckle - Genuine BMW 31217836819

Product Information

BMW Wheel Hub Carriers diagram for Z4

A steering knuckle connects the wheel hub, suspension, and steering components, enabling the wheel to pivot for steering while supporting vertical load from the vehicle’s weight. The knuckle provides mounting points for the control arms, tie rods, strut, or spindle, depending on the suspension design, and houses the wheel bearing, allowing the wheel to rotate freely.

• Steering Misalignment: If the steering knuckle is bent or damaged, it can cause alignment issues, making the vehicle pull to one side and causing uneven tire wear
• Excessive Vibration: A damaged knuckle can disrupt the wheel's connection to the suspension and steering components, resulting in noticeable vibration, especially at higher speeds
• Poor Handling: When the knuckle is compromised, it may lead to poor handling, with the vehicle becoming less responsive to steering inputs or feeling unstable

About Genuine BMW

The original parts used by BMW to build your car are available as replacement parts under the “Genuine BMW” brand. When ordering a Genuine BMW part you are guaranteed to get the same part that you would pick up from your local dealerships part department. Genuine BMW parts have been built to BMW’s stringent standards and are the same quality of the original parts used to build your Ultimate Driving Machine.

You may not realize this, but the parts that make up your BMW are not necessarily manufactured by BMW. No cause for concern, as BMW designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for BMW for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine BMW parts box and find an OEM branded part inside, simply with the addition of a BMW logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.