Shock absorber strut bellow. Porsche 996 / 997  ❭  99634350901

Protect the front shock absorber from dirt, moisture and road contamination with this OE Match Front Shock Absorber Strut Bellow. Designed for compatible Porsche applications, the strut bellow provides a flexible protective covering around the exposed section of the front shock absorber or strut assembly.

Also commonly known as a shock absorber dust boot, strut boot or protective gaiter, the bellow helps shield the damper piston rod and sealing area from abrasive road debris. Keeping these surfaces clean is important because contamination can damage the piston rod surface or compromise the shock absorber seal over time.

The bellow repeatedly expands and contracts as the suspension moves. Combined with exposure to road dirt, water, temperature changes and age, this can eventually cause the material to harden, crack or split.

This OE Match Front Strut Bellow provides a high-quality replacement for a torn, deteriorated or missing original component, helping protect the shock absorber and support long-term suspension reliability.

What This Product Does:

• Covers the exposed shock absorber or strut piston rod.
• Helps prevent dirt and road debris reaching sensitive damper surfaces.
• Reduces exposure to water, grit and other contamination.
• Helps protect the shock absorber sealing area.
• Expands and contracts with normal suspension movement.
• Helps reduce abrasive damage to the piston rod.
• Supports the service life of the shock absorber.
• Provides protection without preventing normal suspension travel.
• Replaces a split, cracked, deteriorated or missing dust boot.
• Helps maintain a clean and properly protected suspension assembly.
• Provides an OE-style replacement for compatible Porsche applications.  

• Visible cracks in the bellow.
• Splits or tears in the material.
• Sections of the bellow breaking apart.
• Material that has become hard or brittle.
• The bellow no longer covering the piston rod correctly.
• The boot becoming detached from its intended position.
• Dirt or road debris accumulating on the exposed damper rod.
• Damage caused by contact with surrounding components.
• Significant deterioration discovered during suspension servicing.
• The original bellow is missing.
• Damage found while replacing the shock absorber, spring or top mount.  

• The polished piston rod of a shock absorber repeatedly passes through the damper seal as the suspension compresses and rebounds. Protecting this surface from abrasive contamination is therefore important.
• When a strut bellow splits or disappears completely, the piston rod becomes more exposed to road grit, dirt and moisture. Contamination can accumulate on the rod and may contribute to scoring, corrosion or deterioration of the sealing surface.
• Damage to the piston rod or seal can eventually result in shock absorber oil leakage and reduced damping performance. At that point, replacement of the complete damper may become necessary.
• A replacement bellow is therefore a relatively simple component that can help protect a considerably more expensive shock absorber.
• On performance vehicles, maintaining dampers in good condition is particularly important because consistent damping contributes directly to tyre control, braking stability and predictable handling.
• Replacing a damaged component with this OE Match Front Shock Absorber Strut Bellow helps restore protection around the damper rod and reduce the risk of contamination-related shock absorber wear.