KYB SB115 Suspension Strut Bellows - Rear

KYB Strut Boot Kit for Rear Audi and Volkswagen Applications

KYB SB115 is a rear suspension strut bellows kit built to shield the strut shaft from dirt, dust, sand, salt, and other road debris. By covering the shaft and helping protect the upper seal and bushing, it supports longer strut service life on select Audi A4, A6, Q3, S4, S6, and Volkswagen rear suspension applications.

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
• Helps protect the upper seal and bushing from contamination
• Designed specifically for Audi applications

Product Details

The KYB Boot Kits line focuses on protecting suspension components from the wear caused by road contamination and extreme suspension movement. The SB115 uses a durable plastic bellows to cover the strut shaft, reducing exposure to abrasive material that can damage polished surfaces and sealing areas. The included poly foam travel-limiting bumper adds impact protection during compression events. This part cross-references Monroe Shocks & Struts 63976 for the same application.

Fits 2010-2016 Audi A4, rear; 2015-2016 Audi Q3, rear; 2015-2016 Audi Q3 Quattro, rear; 2006-2011 Audi A6, rear; 2005-2011 Audi A6 Quattro, rear; 2007-2011 Audi S6, rear; 2005-2009 Audi A4, rear; 2009 Audi A4, rear; 2005-2009 Audi A4 Quattro, rear; 2006-2009 Audi S4, rear; 2005 Audi S4, rear; 1995-2002 Volkswagen Cabrio, rear; 1999 Volkswagen Jetta, rear; 1985-1998 Volkswagen Golf, rear; 1985-1998 Volkswagen Jetta, rear; 1990-1997 Volkswagen Passat, rear; 1990-1995 Volkswagen Corrado, rear; 1985-1993 Volkswagen Cabriolet, rear.

Common Problems This Part Helps Address

• Strut shaft contamination from dirt, dust, salt, and sand
• Premature wear at the upper seal and bushing
• Damage from repeated bottoming out
• Reduced protection for rear struts on daily-driven Audi and Volkswagen vehicles
• Suspension wear caused by road debris exposure

Installation Notes and Tips

Install the boot on the rear strut during strut service or replacement, and inspect the shaft, seal area, and surrounding suspension components before assembly. Confirm exact vehicle fitment by year, model, and suspension configuration, since some Audi applications exclude sport, adaptive, or air suspension setups. For best results, replace worn protective components when servicing the rear suspension.

Quality Assurance

KYB builds this boot kit to OE-level design and quality standards for the listed Audi and Volkswagen rear applications. The SB115 is engineered to provide durable shaft coverage and impact protection in demanding road conditions.