KYB SB122 Suspension Strut Bellows - Front

KYB SB122 Strut Boot Kit for Audi

The KYB SB122 Boot Kit is built to protect front struts from road grit, salt, sand, and dust that can wear the polished shaft, upper seal, and bushing. It also includes a poly foam travel-limiting bumper to help prevent bottoming out and reduce damage from extreme suspension movement.

Key Features

• Superior-quality boot helps protect the strut shaft from leak-causing dirt and debris
• Poly foam bumper helps prevent the strut from bottoming out
• Built to match or exceed OE design and quality
• Protects the upper seal and bushing from contamination
• Designed specifically for Audi applications

Product Details

KYB Boot Kits are part of the KYB Boot Kits product line, focused on keeping strut assemblies shielded from contamination and impact-related wear. The SB122 uses a durable plastic bellows to cover the strut shaft and help block abrasive road debris before it reaches critical sealing surfaces. For Audi A4, Audi A4 Quattro, Audi A6, Audi A6 Quattro, Audi S4, Audi S6, Audi RS4, Audi A8, Audi A8 Quattro, Audi S8, and Volkswagen Passat front suspension service, this part supports long-term strut protection and helps maintain proper suspension operation. This part cross-references Monroe Shocks & Struts 63634 for the same application.

Common Problems This Part Helps Address

• Strut shaft wear caused by dirt, dust, sand, and salt
• Seal damage that can lead to fluid leakage
• Bushing contamination from road debris
• Bottoming-out impact on the strut assembly
• Damage from excessive suspension travel

Installation Notes and Tips

Compatible With front suspension applications only. Fits 2004-2016 Audi S4, front; 2000-2002 Audi S4, front; 1996-2012 Audi A4, front; 1996-2012 Audi A4 Quattro, front; 2006-2011 Audi A6, front, except air suspension; 2005-2011 Audi A6 Quattro, front, except air suspension; 2007-2011 Audi S6, front, except air suspension; 2002-2003 Audi S6, front; 2007-2008 Audi RS4, front; 1998-2005 Volkswagen Passat, front; 1998-2004 Audi A6, front; 1998-2004 Audi A6 Quattro, front; 1997-2003 Audi A8 Quattro, front; 2001-2003 Audi S8, front; and 1997-1999 Audi A8, front. Inspect the strut shaft, seal area, and bumper condition during service, and replace worn suspension protection components at the same time as the strut when needed.

Quality Assurance

KYB is known for suspension components engineered to OE-level design and fit standards. The SB122 is built to match or exceed OE requirements for the listed Audi and Volkswagen front applications.