Keep dirt, grit and moisture out of your steering rack with the Delphi Rack and Pinion Bellows Kit TBR4250. These bellows (boots) seal over the inner tie-rod and rack ends of a rack-and-pinion steering system, keeping contaminants away from the internal components while allowing the tie rods to move as you steer. It installs in the FRONT steering position and fits the 2007-2015 Audi Q7; 2004-2007 BMW 525i; 2006-2007 BMW 525xi; 2004-2005 BMW 530i; 2013-2015 BMW ActiveHybrid 7; 2006-2010 BMW M5; 2004-2011 BMW X3; and Porsche Cayenne for 2006 and 2008-2010 — see the Buyer's Guide tab for engine-level details.
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This part cross-references / interchanges with the following part numbers:
What does this bellows kit do?
The bellows (boots) seal the inner tie-rod and rack ends of a rack-and-pinion steering system, keeping dirt and moisture out while letting the tie rods move as you steer.
Which steering position does it fit?
This kit is cataloged for the FRONT steering position. Confirm your specific vehicle in the Buyer's Guide tab before ordering.
What vehicles does the TBR4250 fit?
It fits the Audi Q7, BMW 525i, 525xi, 530i, ActiveHybrid 7, M5 and X3, and the Porsche Cayenne across the listed years. See the Buyer's Guide tab for the full application list.
Are installation accessories included?
Yes. Delphi includes the necessary accessories to complete the job. Consult the vehicle service information for the correct procedure and any required fasteners.
What are signs the bellows may need replacing?
Cracked, torn or leaking bellows can let grease escape and allow dirt and water into the rack. Inspect and diagnose the cause before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
