KYB SB138 Suspension Strut Bellows - Front

KYB Strut Boot for Nissan Front Suspension

KYB SB138 is a front suspension strut boot designed to shield the strut shaft from dirt, dust, sand, salt, and other road debris. By covering the shaft with a durable plastic bellows and adding a poly foam travel-limiting bumper, it helps protect key wear surfaces on Nissan Frontier, Xterra, Pathfinder, and Suzuki Equator front struts.

Key Features

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

Product Details

The KYB Strut Boot line focuses on preserving strut performance by keeping contaminants away from the polished shaft, upper seal, and bushing. KYB SB138 is a direct-fit suspension strut bellows for front applications on 2005-2021 Nissan Frontier, 2005-2015 Nissan Xterra, 2005-2012 Nissan Pathfinder without Off Road Package, and 2009-2012 Suzuki Equator. This part number, SB138, is built for drivers replacing worn or damaged strut protection on front suspension service jobs.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems It Helps Address

• Strut shaft wear caused by road grit and debris
• Seal damage that can lead to fluid leakage
• Bushing wear from contamination exposure
• Bottoming-out impact on the front strut assembly
• Damage from extreme suspension movement

Installation Notes

Install SB138 during front strut service so the boot and bumper are in place before the suspension is returned to service. Verify the vehicle is one of the listed front applications before installation, including 2005-2021 Nissan Frontier front, 2005-2015 Nissan Xterra front, 2005-2012 Nissan Pathfinder front without Off Road Package, or 2009-2012 Suzuki Equator front. Inspect the strut shaft, seal area, and bushing condition before reassembly.

Quality Assurance

KYB is known for OE-style suspension engineering, and the Strut Boots line is built to the same design and quality standards expected for replacement suspension service. KYB SB138 is engineered for front strut protection on Nissan Frontier, Xterra, Pathfinder, and Suzuki Equator applications.