KYB SB135 Suspension Strut Bellows - Front

KYB Strut Boot Kit for Explorer and Mountaineer

KYB SB135 is a front suspension strut bellows kit built to shield the strut shaft from dirt, dust, sand, salt, and other road debris. It also includes a poly foam travel-limiting bumper to help prevent bottoming out and reduce damage from extreme suspension movement.

Compatible with 2006-2010 Ford Explorer front, 2007-2010 Ford Explorer Sport Trac front, and 2006-2010 Mercury Mountaineer front, this KYB Boot Kit is designed for direct-fit service on these applications. The KYB Boot Kits product line focuses on protecting exposed strut components so the assembly can maintain proper operation over time.

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 Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer front applications

Detailed Description

KYB SB135 is a suspension strut bellows kit that covers the full strut shaft with a durable plastic boot, helping block contaminants before they reach critical wear surfaces. By reducing exposure to abrasive road debris, the boot helps protect the polished shaft, upper seal, and bushing from premature wear. The included foam bumper adds travel control during compression events, helping reduce harsh bottom-out contact and related component stress. For drivers searching for a front strut boot kit for 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, or 2006-2010 Mercury Mountaineer, SB135 provides a focused OE-style service part for those vehicles. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Helps Address

• Strut shaft contamination from dirt, dust, sand, and salt
• Wear on the upper seal caused by road debris
• Bushing damage from abrasive particles entering the strut area
• Harsh suspension contact during full compression
• Damage from extreme suspension movement

Installation Notes and Tips

Install SB135 during front strut service so the boot and bumper can be inspected and replaced together with the strut assembly. Confirm vehicle application by year, make, model, and front position before installation. Clean the surrounding suspension area before assembly to reduce the chance of trapped debris affecting the new boot.

Quality Assurance

KYB builds this boot kit to match or exceed OE design and quality standards, with materials selected to protect exposed strut components in daily driving conditions. The SB135 part number is engineered for the specified Explorer and Mountaineer front applications.