Rein BKN0172 CV Joint Boot Kit - Rear Outer

OE-Style Rear Outer CV Boot Kit

Rein BKN0172 is an application-specific rear outer CV joint boot kit built for BMW driveline service. It includes the OE grease and the hardware needed for a proper repair, helping restore the protective seal around the joint on BMW Z4, X1, 128i, 328i, 335i, 528i, 535i, X3, and related xDrive/xi models.

For BMW rear outer axle service, BKN0172 provides an OE-quality replacement solution that matches original equipment design specifications and is made to support a precise first-time installation.

Key Features

• Application-specific fit for rear outer CV joint service
• Includes clamps, washers, clips, and related repair hardware
• Supplied with OE grease
• Boot material is selected to resist cracking, wear, and leakage
• Matches original equipment design specifications
• Black boot finish

Detailed Description

The Rein BKN0172 CV joint boot kit is engineered for BMW rear outer axle applications where the original boot has split, hardened, or begun leaking grease. By sealing the joint from dirt, sand, and road debris, the boot helps protect the CV joint from contamination that can lead to noise and premature wear. This kit is a practical OE-style service part for BMW 325i, 330i, 525i, 530i, X3, Z4, and other listed rear outer applications. Cross-reference part numbers include 33217529915 and 33217547080 for the same application.

Common Repair Symptoms

• Grease visible around the rear outer axle area
• Cracked, torn, or split CV boot
• Clicking or vibration from a contaminated CV joint
• Boot leakage after road debris exposure
• Wear from age, heat, and normal driveline movement

Installation Notes

Clean the axle and joint thoroughly before installation, then pack the joint with the supplied OE grease and secure the boot with the included hardware. Verify rear outer fitment by model year and production date, especially on 2006 BMW 525i, 525xi, 530i, 530xi, and X3 applications with date-specific notes. Fits 2006-2016 BMW Z4, rear outer; Fits 2013-2015 BMW X1, rear outer; Fits 2008-2013 BMW 128i, rear outer; Fits 2007-2013 BMW 328i, rear outer; Fits 2009-2013 BMW 328i xDrive, rear outer; Fits 2009-2013 BMW 335i, rear outer; Fits 2009-2013 BMW 335i xDrive, rear outer; Fits 2008-2010 BMW 135i, rear outer; Fits 2008-2010 BMW 528i, rear outer; Fits 2010 BMW 528i xDrive, rear outer; Fits 2008-2010 BMW 535i, rear outer; Fits 2009-2010 BMW 535i xDrive, rear outer; Fits 2007-2008 BMW 328xi, rear outer; Fits 2008 BMW 335i, rear outer, from 9/07; Fits 2008 BMW 335xi, rear outer, from 9/07; Fits 2008 BMW 528xi, rear outer; Fits 2008 BMW 535xi, rear outer; Fits 2004-2007 BMW 525i, rear outer; Fits 2006-2007 BMW 525xi, rear outer; Fits 2006-2007 BMW 530xi, rear outer; Fits 2006 BMW 325i, rear outer; Fits 2006 BMW 325xi, rear outer; Fits 2006 BMW 330i, rear outer; Fits 2006 BMW 330xi, rear outer; Fits 2006 BMW 525i, rear outer, to 9/05; Fits 2006 BMW 525i, rear outer, from 10/05 to 11/05; Fits 2006 BMW 525xi, rear outer, to 9/05; Fits 2006 BMW 525xi, rear outer, from 10/05 to 11/05; Fits 2006 BMW 530i, rear outer, to 9/05; Fits 2006 BMW 530i, rear outer, from 10/05 to 11/05; Fits 2006 BMW 530xi, rear outer, to 9/05; Fits 2006 BMW 530xi, rear outer, from 10/05 to 11/05; Fits 2006 BMW X3, rear outer, to 12/05; Fits 2004-2005 BMW 530i, rear outer; Fits 2004-2005 BMW X3, rear outer.

Quality Assurance

Rein manufactures this boot kit to OE design specifications and supplies the hardware and grease needed for a complete service repair. Part number BKN0172 is built for BMW rear outer CV boot replacement where a direct-fit, application-specific solution is required.