KYB SB161 Suspension Strut Bellows - Front

KYB SB161 Strut Boot for Mazda 3 Front

KYB SB161 is a front suspension strut bellows for select Japan-built Mazda 3 models. It helps shield the strut shaft and seal area from road grit while adding a travel-limiting bumper for added suspension protection.

Key Features

• Protects the polished strut shaft from dirt, dust, sand, salt, and road debris
• Helps reduce abrasive wear at the upper seal and bushing
• Durable plastic bellows covers the strut shaft
• Includes a poly foam travel-limiting bumper
• Fits front applications on select 2019-2022 Mazda 3 models

Product Details

KYB Strut Boots are part of the KYB Strut Boots product line and are built to keep suspension components cleaner and better protected in daily driving conditions. On a Mazda 3 front strut, the boot covers the exposed shaft to block contaminants that can accelerate wear, while the bumper helps limit harsh bottoming-out events that can damage the strut and nearby components. Part number SB161 is listed for 2019-2020 Mazda 3 front Japan-built vehicles and 2021-2022 Mazda 3 front Japan-built vehicles.

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

What It Helps Address

• Strut shaft contamination from road debris
• Seal wear caused by dirt and abrasive particles
• Suspension noise related to damaged protective bellows
• Impact damage from excessive suspension travel
• Premature wear on exposed front strut components

Installation Notes

Install on the front strut assembly during strut service or replacement. Verify Japan-built fitment before ordering, and inspect the strut shaft, seal, and bushing for wear before reassembly. Confirm the vehicle is a 2019-2022 Mazda 3 front application listed for SB161.

Quality Assurance

KYB is a suspension-focused OE supplier known for replacement parts that follow original equipment service needs. SB161 is built to support front strut protection on the listed Mazda 3 applications.