KYB SB143 Suspension Strut Bellows - Front

KYB Strut Boot SB143 Overview

KYB Strut Boot SB143 is a suspension strut bellows built to shield the strut shaft from road grit and moisture. It also includes a poly foam travel-limiting bumper to help prevent bottoming out and reduce impact-related wear.

Compatible With 2004-2012 Chevrolet Colorado front and 2004-2012 GMC Canyon front applications, this KYB Strut Boot helps protect the polished shaft, upper seal, and bushing from abrasive contamination. The KYB Strut Boots line is focused on preserving strut function by covering exposed components that are vulnerable to dirt, dust, sand, salt, and debris.

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
• Protects the upper seal and bushing from contamination
• Durable plastic bellows covers the full strut shaft

Detailed Description

Part number SB143 is a KYB suspension strut bellows designed for front strut applications where the shaft is exposed to road contamination. By keeping abrasive material away from the shaft and sealing surfaces, the boot helps reduce premature wear that can lead to strut leakage and degraded ride control. The included foam bumper adds travel control during compression events, helping protect the strut and nearby suspension components from extreme movement damage.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. For buyers searching for a front strut boot for 2004-2012 Chevrolet Colorado or 2004-2012 GMC Canyon, SB143 is a direct fitment-focused option. It also serves select Isuzu i-290 front and Isuzu i-280 front applications listed in the fitment data.

What It Helps Address

• Strut shaft wear caused by dirt, dust, sand, and salt
• Leak risk from contamination at the upper seal
• Bushing wear from road debris exposure
• Bottoming-out impact during suspension compression
• Damage from excessive suspension movement

Installation Notes and Tips

Install SB143 on the front strut assembly only where the vehicle fitment matches the listed application. Inspect the strut shaft, seal area, and bushing before installation; a boot cannot correct an already leaking or damaged strut. Confirm clearance around the bellows and bumper during suspension travel, especially on 2004-2012 Chevrolet Colorado and 2004-2012 GMC Canyon front setups with notes that exclude Off Road Suspension.

Quality Assurance

KYB designs this strut boot kit to align with OE-level fit and function expectations. The SB143 part number is part of KYB's Strut Boots line, which focuses on protecting suspension components from contamination and impact-related wear.