Porsche Wheel Seal Rear Inner (911) - Genuine Porsche 99911321840

Product Information

A wheel seal is a circular sealing component located around the wheel hub or axle. Its main purpose is to keep lubricating grease or gear oil inside the wheel bearings while preventing dirt, water, and debris from entering. By maintaining proper lubrication and cleanliness, it helps ensure smooth wheel rotation and extends the life of the bearings. Over time, heat, wear, and exposure to road contaminants can cause the seal to deteriorate.

• Fluid leaks – grease or oil visible on the inside of the wheel, tire, or brake components.
• Wheel or bearing noise – humming, grinding, or rumbling sounds from contaminated or under-lubricated bearings.
• Premature bearing wear – excessive play, overheating, or failure of the wheel bearing due to loss of lubrication.

About Genuine Porsche

The original parts used by Porsche to build your car are available as replacement parts under the “Genuine Porsche” brand. Manufactured under the direction of Porsche, expect excellent quality and a premium price since these parts are exclusively available through the Porsche Dealership network.

You may not realize this, but the parts that make up your Porsche are not necessarily manufactured by Porsche. No cause for concern, as Porsche designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for Porsche 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 Porsche parts box and find an OEM branded part inside, simply with the addition of a Porsche 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.