Basically, this seal keeps the fluids – usually gear oil – inside the transfer box and keeps dirt and water out. It sits around the shaft where it exits the box. Think of it like a really important gasket, but specifically for a rotating shaft. It’s a simple part, but it’s gotta do its job consistently. This seal is part of the drivetrain, so it’s pretty key to getting power from the engine to the wheels, especially if you have a four or all – wheel drive vehicle. The transfer box splits the power, and this seal helps ensure everything runs smoothly within that system. It’s not something that makes the car go, but it’s a component that keeps everything able to go. If this seal fails, you’ll start losing gear oil. You'll notice if you see oil leaking around the transfer box. That lost oil reduces lubrication, which can lead to wear and tear on the gears inside. That wear can quickly get expensive. Ignoring it can eventually cause serious damage to the transfer box itself. Replacing a seal is much cheaper and easier than replacing a whole transfer box, believe me. You can find these seals pretty easily, Fixparts Online has a good selection, and they’re usually a straightforward repair if you’re comfortable working on vehicles. It's a preventative thing really, catching a small leak before it becomes a big problem. Proven reliability: Shaft Seal (MPN 27107546667) is backed by a 12-month warranty!

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• Get parts made specifically for your BMW, so they fit and work perfectly. • BMW parts are known for their high quality and durability, meaning they last longer. • Using genuine BMW parts helps maintain your vehicle’s value. • You can trust BMW parts to keep your car running smoothly and safely. BMW – trusted quality, available at FixParts Online!