KYB SB158 Suspension Strut Bellows - Front

KYB Strut Boot SB158 for Front Applications

KYB SB158 is a front suspension strut bellows designed to cover the strut shaft and help keep abrasive road debris away from critical wear surfaces. It also includes a poly foam travel-limiting bumper to help protect the strut from bottoming out.

Key Features

• Protects the polished strut shaft, upper seal, and bushing from dirt, dust, sand, salt, and road debris
• Durable plastic bellows covers the strut shaft
• Includes a poly foam bumper for travel limiting and bottom-out protection
• Front suspension application
• KYB Strut Boot line for OE-style suspension service

Product Details

The KYB Strut Boot SB158 is built for front strut service on select Hyundai and Kia vehicles. By shielding the shaft from contaminants, it helps reduce abrasive wear that can shorten strut life. This part fits 2017-2020 Kia Cadenza, front; 2016-2020 Kia Optima, front; and 2017-2019 Hyundai Sonata, front. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Helps Address

• Road grit reaching the strut shaft
• Premature wear at the upper seal
• Damage from suspension bottoming out
• Contamination-related bushing wear
• Exposure to salt and moisture on front struts

Installation Notes

Install on the front strut assembly during strut service or replacement. Inspect the shaft, seal area, and surrounding suspension components before installation. Verify vehicle fitment by year, make, model, and front position before ordering. Fits 2017-2020 Kia Cadenza, front; fits 2016-2020 Kia Optima, front; fits 2017-2019 Hyundai Sonata, front.

Quality Assurance

KYB manufactures suspension components with OE-focused engineering and application coverage. SB158 is part of the KYB Strut Boot line, which is built to protect strut components from contamination and impact-related damage.