BMW Chain Tensioner - Genuine BMW 32421707199

Product Information

Power steering pumps pressurize the fluid in the steering hydraulic system to allow for steering assist at slow road speeds. The power steering system is powered by the engine via a serpentine or v belt which spins the pump pulley. Power steering pumps are generally a lifetime component.

However, poor power steering system maintenance, old power steering fluid, and incorrect power steering fluid can cause the pump to fail prematurely. If your power steering pump is screaming or chirping when you are turning the wheels you may need to replace it.

• Leaks at seals
• Squeaking or squealing sounds
• Heavy steering feel at slower road speeds
• Whining noise when turning the steering wheel

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.