KYB Suspension SB139 Strut Boot Kit with Jounce Bumper and Bellows

The KYB Suspension SB139 Strut Boot Kit provides essential protection for your vehicle's struts against damaging road contaminants. This complete protection system shields the strut shaft from dirt, dust, sand, salt, and other debris that cause premature wear to critical strut components including the polished shaft, upper seal, and bushing.

Key Features:

• Heavy-duty plastic bellows covers the entire strut shaft to prevent contaminant intrusion
• Includes polyurethane foam jounce bumper to limit suspension travel
• Prevents strut bottoming out and protects suspension components from extreme movement damage
• Extends strut service life by protecting against abrasive wear
• Direct replacement design for easy installation

This strut boot kit is engineered to significantly extend strut life by creating a protective barrier against harsh environmental conditions. The included jounce bumper serves as a critical safety feature, cushioning the suspension during compression and preventing metal-to-metal contact that can damage the strut and other suspension components.