Spring plate rear brake caliper UPPER. Porsche 911 turbo  ›  93035154003

Front Brake Caliper Overhaul Kit - for Both Sides

Restore your Porsche's front braking system to factory performance with this comprehensive OE Match Front Brake Caliper Overhaul Kit, designed specifically for the Porsche 986 Boxster S and Porsche 996 fitted with Brembo front brake calipers. This complete rebuild kit services both front brake calipers and contains everything required to replace the critical wear components during a professional caliper refurbishment.

Fits:

• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster S 986 3.2L 2003-04
• Porsche 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01
• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005

Manufactured to original equipment specifications and featuring premium Brembo piston seals, this overhaul kit restores braking efficiency, piston movement and weather protection while helping extend the service life of your original Brembo calipers.

Kit Contents

This complete front brake caliper overhaul kit services both front calipers and contains:

• 4 x Ventilation Valve Caps
• 4 x Ventilation Valves (Bleed Nipples)
• 4 x Pan-Head Screws
• 2 x Repair Kits (Bolt, Spring & Retaining Clip)
• 4 x Protection Caps – 40mm
• 4 x Protection Caps – 36mm
• 4 x Brembo Piston Seals – 36mm
• 4 x Brembo Piston Seals – 40mm
• 1 x Left Caliper Connecting Line
• 1 x Right Caliper Connecting Line

Everything required to carry out a comprehensive overhaul of both front Brembo brake calipers.

What Does a Brake Caliper Overhaul Kit Do?

Over time, the seals, dust boots and service components inside the brake calipers deteriorate due to heat, age and repeated braking cycles. A caliper overhaul kit restores the internal sealing and protection of the caliper, allowing the pistons to operate smoothly and maintain consistent hydraulic pressure.

The overhaul restores:

• Correct piston sealing.
• Smooth piston movement.
• Protection against water and dirt ingress.
• Proper brake pad operation.
• Reliable hydraulic performance.
• Consistent braking performance.
• Long-term caliper reliability.

A professionally rebuilt caliper can often provide many more years of dependable service.

Why Do Brake Calipers Require Overhauling?

Brake calipers operate in one of the harshest environments on the vehicle. Common causes of wear include:

• Heat generated during braking.
• Ageing and hardening of rubber piston seals.
• Dust boot deterioration.
• Moisture entering the caliper.
• Corrosion around the pistons.
• Contaminated brake fluid.
• Sticking pistons.
• Seized bleed nipples.
• General wear after high mileage.

Ignoring worn seals can eventually result in sticking brakes, uneven pad wear or brake fluid leaks.

When Should a Brake Caliper Be Rebuilt?

A caliper overhaul is recommended whenever:

• Brake pistons become stiff or seize.
• Dust boots split or perish.
• Brake fluid leaks develop.
• Uneven brake pad wear is evident.
• The calipers are removed for restoration.
• During a complete brake system refurbishment.
• The vehicle is being prepared for fast road or track use.
• As preventative maintenance on ageing vehicles.

Rebuilding both front calipers at the same time ensures balanced braking performance across the axle.

Rear Brake Caliper Overhaul Kit for Both Sides

Restore your Porsche's rear braking performance with this comprehensive OE Match Rear Brake Caliper Overhaul Kit, designed specifically for the Porsche 986 Boxster and Porsche 996 Carrera 2 / Carrera 4 fitted with Brembo rear brake calipers. This complete rebuild kit services both rear brake calipers, providing every essential component required to professionally refurbish your original calipers.

Fits:

• Porsche Boxster 986 2.5L 1997-99
• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster 986 2.7L 2003-04
• Porsche Boxster S 986 3.2L 2003-04
• Porsche 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01
• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005

Parts Diagram ref No's 8, 10, 11, 12, 13, 14, 15.

Manufactured to original equipment specifications and featuring premium Brembo piston seals, this overhaul kit restores smooth piston movement, reliable hydraulic sealing and long-term protection against dirt, moisture and corrosion, helping extend the life of your original Brembo braking system.

Kit Contents

This complete rear brake caliper overhaul kit services both rear calipers and includes:

• 4 x Ventilation Valve Caps
• 4 x Ventilation Valves (Bleed Nipples)
• 4 x Pan-Head Screws
• 2 x Repair Kits (Bolt, Spring & Retaining Clip)
• 4 x Protection Caps – 28mm
• 4 x Protection Caps – 30mm
• 4 x Brembo Piston Seals – 28mm
• 4 x Brembo Piston Seals – 30mm
• 1 x Left Caliper Connecting Line
• 1 x Right Caliper Connecting Line

Everything required to carry out a complete overhaul of both rear Brembo brake calipers.

What Does a Rear Brake Caliper Overhaul Kit Do?

A brake caliper overhaul kit replaces the critical internal sealing and service components that naturally deteriorate over time. Fresh piston seals restore hydraulic sealing, while new dust protection caps keep dirt, moisture and road debris away from the pistons, ensuring smooth and reliable operation.

The overhaul helps to:

• Restore smooth piston movement.
• Maintain correct hydraulic pressure.
• Prevent brake fluid leaks.
• Protect pistons from corrosion.
• Ensure even rear brake pad wear.
• Improve braking consistency.
• Extend the service life of the original calipers.

A professionally rebuilt caliper restores much of the original braking performance while retaining the factory Brembo calipers.

Why Do Rear Brake Calipers Need Rebuilding?

Rear brake calipers are constantly exposed to heat, moisture and road contamination. Over time, service components begin to deteriorate. Common causes include:

• Heat generated during braking.
• Ageing and hardening of piston seals.
• Perished or split dust caps.
• Moisture entering the caliper.
• Corrosion around the pistons.
• Contaminated brake fluid.
• Seized or sticking pistons.
• Worn bleed valves.
• General wear after years of service.

Ignoring worn seals can eventually lead to sticking calipers, uneven pad wear, brake fluid leaks and reduced braking efficiency.

When Should the Rear Brake Calipers Be Overhauled?

A complete rebuild is recommended whenever:

• Rear brake pistons become stiff or seize.
• Dust caps split or deteriorate.
• Brake fluid leaks develop.
• Rear brake pads wear unevenly.
• The calipers are removed for restoration.
• During a complete brake system refurbishment.
• Preparing the vehicle for fast road or track use.
• As preventative maintenance on higher mileage vehicles.

Rebuilding both rear calipers together ensures balanced braking performance across the rear axle.