11211743464 BMW BRG SHELL

This little piece is part of the crankshaft bearing system, and its main job is to manage the axial loads – that’s the forces pushing along the length of the crankshaft, not sideways. It essentially provides a surface for the thrust washer itself to ride on. Think of it as a backing plate. It handles the pressure created when you accelerate, decelerate, or even just the engine firing. It keeps everything aligned and prevents excessive side – to – side movement. It sits inside the crankcase, right where the crankshaft goes through. It's a key component in controlling how the crankshaft moves. It works with the thrust washer – they’re a team really – to allow the crankshaft to rotate smoothly while preventing it from walking back and forth and damaging other parts. It’s all about maintaining proper engine balance. If this shell fails, you’ll notice if it does, usually pretty quickly. You’ll likely hear knocking sounds from the engine, especially under load. A worn or damaged shell will let the crankshaft move too much, leading to bearing failure, and then bigger problems like engine damage. It acts like a shield, protecting the more expensive components. It’s a relatively inexpensive part to replace, but ignoring it can lead to a very costly repair. You can find these on a site like Fixparts Online, and it’s a good idea to replace them whenever you’re doing work on the crankshaft bearings anyway – preventative maintenance will save you headaches down the road. Better than the rest: Thrust Washer Shell (MPN 11211743464) is backed by a 12-month warranty!

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