The Corteco 12011427B is a crankshaft shaft seal designed to prevent oil leaks from the engine’s crankshaft. This seal is crucial for maintaining proper lubrication and preventing engine damage. It's commonly used in engine repair and maintenance, ensuring the integrity of the engine's sealing system. This seal provides a reliable barrier against oil leakage, contributing to extended engine life and optimal performance. It measures 114 x 105 x 105 mm and is manufactured in Indonesia. This seal basically keeps oil in and keeps dirt and debris out. It sits right where the crankshaft comes out of the engine block. The crankshaft is what’s turning everything, and it’s bathed in oil for lubrication. This seal’s job is to contain that oil so it doesn’t leak all over the place, and it prevents things from the outside – dust, water, road grime – from getting inside the engine where they don’t belong. It’s a pretty simple part, but critical. Think of it as a barrier protecting the heart of your engine. It’s positioned between the rotating crankshaft and the stationary engine block. As the crankshaft spins, the seal has to move with it, maintaining that tight barrier. It’s part of the engine’s sealing system, alongside things like your valve cover gaskets and oil pan gasket, but this one has a particularly tough job because of that constant rotation. If this seal fails, you’ll start to see oil leaks. At first it might just be a small drip, but it can quickly become a significant leak. Lost oil means less lubrication for your engine, which can lead to major damage – worn bearings, a scored crankshaft, even engine failure. You’ll notice if it’s leaking – usually a smell of burning oil, or a visible puddle under your car. Replacing it is a relatively inexpensive fix compared to the cost of repairing engine damage. You can find a good replacement at places like Fixparts Online, and there are lots of helpful videos online showing you how to install it yourself if you’re comfortable doing that sort of thing. It acts like a shield, really – protecting a very expensive component. We’re here to help: Crankshaft Shaft Seal (MPN 12011427B) includes a 12-month warranty!

About Corteco

Corteco specializes in sealing solutions, vibration control, and cabin air filters, providing top-quality components for the automotive aftermarket.

Why Choose Corteco?

• Corteco parts are made to the same high standards as the original parts your car came with, so you know they’ll fit and work right. • We offer a really wide range of parts, covering most makes and models – from everyday cars to more specialized vehicles. • You’re getting a reliable part at a great price, helping you keep your car running smoothly without breaking the bank. • Corteco has been a trusted name in auto parts for decades, meaning you’re choosing a brand with a proven track record of quality. Corteco delivers excellence, FixParts Online delivers to your door.