Rein BKN0043P CV Joint Boot Kit - Front Inner or Rear Inner

OE Quality CV Boot Kit for Audi Axles

The Rein BKN0043P CV Joint Boot Kit is an application-specific replacement for select Audi front inner and rear inner axle positions. It includes the OE grease and the hardware needed for a proper repair, helping restore the protective seal around the CV joint on Audi A4 Quattro, S4, and RS4 applications.

Built with high-quality materials and produced by the OE manufacturer, this Rein OE quality CV boot kit is made for a direct-fit service on the listed vehicles. If you are servicing a worn or torn boot on a 2002-2009 Audi A4 Quattro rear inner axle or a 2004-2009 Audi S4 rear inner axle, BKN0043P provides the correct service components for the job.

Key Features

• Application-specific CV joint boot kit for select Audi front inner and rear inner axle positions
• Includes clamps, washers, clips, and other required repair hardware
• Supplied with OE grease
• Boot material is engineered to resist cracking, wear, and leakage
• Boot produced by the OE manufacturer
• Rein part number BKN0043P for catalog and service reference

Detailed Description

CV boots protect the joint from dirt, sand, and other contaminants that can quickly damage the axle assembly if the boot is compromised. This Rein CV Boot Kit is built as an OE-quality service part for Audi driveline repair, with application-specific fitment for the listed A4 Quattro, S4, and RS4 models. The kit is intended for technicians and DIY repair work where the original boot has split, hardened, or begun leaking grease.

This part cross-references Audi OE numbers 8E0498201A and 8E0498201F for the same application. Use BKN0043P when servicing a 2002-2009 Audi A4 Quattro rear inner boot, a 2004-2009 Audi S4 rear inner boot, or a 2006-2008 Audi A4 Quattro front inner boot.

What It Helps Fix

• Torn or cracked CV boot material
• Grease leakage around the axle joint
• Contamination from road dirt, sand, and moisture
• Noise or vibration caused by a failing boot and joint protection loss
• Wear from aging rubber on Audi A4 Quattro, S4, and RS4 axle assemblies

Installation Notes and Tips

Confirm axle position and diameter before installation, especially on 2004-2006 Audi A4 Quattro and S4 rear inner applications with a 75.5 mm axle stub shaft. Verify the vehicle by year, model, and position before disassembly, and inspect the CV joint for damage before installing the new boot. This kit does not include printed installation instructions.

• Fits 2002-2009 Audi A4 Quattro, rear inner
• Fits 2004-2009 Audi S4, rear inner
• Fits 2006-2008 Audi A4 Quattro, front inner
• Fits 2002-2004 Audi A4 Quattro, front inner
• Fits 2007-2008 Audi RS4, rear inner
• Fits 2004-2006 Audi A4 Quattro, rear inner, w/75.5mm Dia. Axle Stub Shaft
• Fits 2004-2006 Audi S4, rear inner, w/75.5mm Dia. Axle Stub Shaft
• Fits 2005 Audi A4, front inner
• Fits 2005 Audi A4, rear inner
• Fits 2003 Audi A4 Quattro, rear inner, From VIN 8E3134001

Quality Assurance

Rein supplies OE-quality driveline service parts, and this boot kit is produced by the OE manufacturer for consistent fit and material quality. The BKN0043P CV boot kit is built to support a proper axle boot replacement on the listed Audi applications.