Maintain peak hydraulic performance and prevent fluid leaks with this genuine Wilwood square ring seal kit. These seals are engineered specifically for Wilwood caliper rebuilds, providing the precise tension required for consistent piston retraction and a firm, responsive brake pedal.

Unlike standard round O-rings, the square profile is designed to deform slightly under pressure and pull the piston back when the brake is released. This mechanical retraction reduces pad drag and helps maintain optimal clearance. This kit includes six seals in the specified bore sizes to service multi-piston calipers.

• Manufacturer: Wilwood Engineering
• Seal Type: Square Ring Profile
• Bore Sizes: 1.62", 1.12", 1.12"
• Pack Quantity: 6 Seals
• Application: Disc Brake Caliper Maintenance and Rebuilding

Maintain the stopping power and hydraulic integrity of your braking system with the GiroDisc Front Caliper Rebuild Kit for Porsche 911 Carrera S, 4S, and GTS (991.1) models. Over time, repeated heat cycles and environmental exposure degrade factory seals, which can lead to piston drag, uneven pad wear, or fluid leaks. This kit provides the essential components to refresh your front calipers and restore consistent pedal feel.

Engineered to meet or exceed original equipment tolerances, these components are vital for vehicles subjected to the high thermal loads of track use or high-mileage street driving. Rebuilding your calipers ensures that pistons retract properly and the hydraulic system remains sealed under pressure.

• Manufacturer Part Number: CCRK1-122
• Position: Front Calipers
• Fitment: Porsche 911 Carrera S / 4S / GTS (991.1)
• Kit Components: High-quality pressure seals and dust boots
• Service Benefit: Restores piston retraction and prevents fluid leaks

Fits 2015-2024 Audi RS3 Sedan (8V), including models equipped with Front Carbon Ceramic Matrix (CCM) brakes.

Maintain the hydraulic integrity and stopping power of your high-performance braking system with the GiroDisc Front Caliper Rebuild Kit. Intense heat cycles from track use or aggressive driving eventually degrade factory piston seals and external dust boots, leading to sticking pistons or fluid leaks. This kit (CCRK1-180) provides the specialized components needed to refresh your front calipers, ensuring smooth piston retraction and consistent pedal feel.

• Manufacturer Part Number: CCRK1-180
• Direct replacement for OE front caliper seals and dust boots
• Engineered to withstand high-temperature operating conditions
• Compatible with both standard iron and factory CCM brake configurations
• Helps prevent caliper dragging and uneven pad wear

Maintain peak braking performance with this Wilwood stainless steel caliper piston. Engineered to provide superior corrosion resistance and thermal stability, this piston is a direct replacement for Wilwood part number 200-7216. Stainless steel construction is preferred in high-performance and racing applications for its ability to reduce heat transfer from the brake pads to the hydraulic fluid, helping to prevent fluid boil and brake fade.

• Manufacturer Part Number: 200-8439
• Material: Stainless Steel (SS)
• Piston Diameter: 1.12 inches
• Piston Length: 0.88 inches
• Compatibility: Replaces Wilwood 200-7216

Precision-machined to exacting tolerances, this piston ensures smooth operation and a reliable seal within the caliper bore, extending the service life of your braking system.

Maintain your braking system's performance with this precision-machined Wilwood stainless steel caliper piston. As a direct replacement component for compatible Wilwood brake calipers, this piston (MPN: 200-7520) is engineered to withstand the high temperatures and corrosive environments inherent to performance driving.

The stainless steel construction provides a superior thermal barrier compared to standard aluminum pistons, effectively reducing heat transfer from the brake pads into the hydraulic fluid to help prevent pedal fade. Each piston is manufactured to tight tolerances to ensure smooth movement and consistent seal engagement within the caliper bore.

• Material: Stainless Steel (SS)
• Piston Diameter: 1.62 in
• Piston Length: 0.88 in
• Manufacturer Part Number: 200-7520

This Wilwood 200-7518 stainless steel brake caliper piston is engineered as a high-durability replacement for worn or damaged pistons in compatible Wilwood disc brake calipers. Measuring 1.38 inches in diameter by 0.88 inches in length, it provides the precise tolerances required for smooth piston travel and consistent brake pad pressure.

Constructed from premium stainless steel, this piston offers superior thermal resistance compared to aluminum or chrome-plated steel, helping to minimize heat transfer to the brake fluid under heavy braking conditions. The corrosion-resistant properties of stainless steel also prevent sticking and seal damage caused by oxidation, making it an essential component for caliper rebuilds in performance or racing applications.

• Manufacturer Part Number: 200-7518
• Material: Stainless Steel (SS)
• Diameter: 1.38 inches
• Height: 0.88 inches
• Function: Replaces OE caliper piston to maintain hydraulic integrity and thermal performance

Restore the sealing integrity of your brake system with the Wilwood Square Seal O-Ring Kit. These 1.62-inch square-cut seals are engineered specifically for Wilwood caliper pistons, providing the precise fitment and tension required for consistent piston retraction and a leak-free seal under high hydraulic pressure.

Manufactured from high-grade elastomers designed to withstand the thermal demands of performance braking and the corrosive properties of brake fluid, these seals are critical for routine caliper maintenance or a complete professional rebuild. Proper seal replacement ensures even pad wear and prevents fluid loss that can compromise stopping power.

• Bore Diameter: 1.62 in
• Seal Profile: Square Seal
• Quantity: 4 Pack
• Manufacturer Part Number: 130-4346

Maintain your Wilwood GP-series brake calipers with this genuine square seal O-ring kit. Designed for precision hydraulic sealing, these square-cut seals provide the necessary tension for consistent piston retraction and leak-free performance under high-temperature braking conditions.

• Compatible with Wilwood GP200, GP300, GP310, GP320, and GP340 calipers
• Square-cut seal profile ensures proper piston movement and fluid retention
• Durable elastomer construction resistant to brake fluid and thermal stress
• Set includes 4 O-rings for caliper service
• Manufacturer Part Number: 130-3602

Maintain hydraulic integrity and consistent braking performance with the Wilwood 130-2658 Square Seal O-Ring Kit. These square-cut seals are engineered specifically for calipers utilizing a 1.38-inch piston bore. Unlike standard round O-rings, square seals are designed to provide a positive hydraulic seal while providing the necessary tension to retract the piston when brake pressure is released, preventing pad drag and excessive heat buildup.

• Manufacturer Part Number: 130-2658
• Bore Diameter: 1.38 inches
• Seal Design: Square-cut profile for optimal piston retraction
• Application: Service kit for Wilwood brake caliper rebuilds
• Quantity: Pack of 4 seals

Restore the hydraulic integrity of your braking system with the Wilwood Square Seal O-Ring Kit. These 1.75-inch square-cut seals are engineered specifically for high-performance brake calipers, providing the necessary tension to seal the piston against the bore while ensuring precise piston retraction after every brake application.

Ideal for routine maintenance or a complete caliper overhaul, these seals are manufactured to strict tolerances to withstand the high temperatures and pressures typical of performance driving. Using genuine Wilwood replacement seals ensures compatibility with brake fluids and maintains the original pedal feel and response of your braking system.

• Seal Profile: Square-cut
• Piston Diameter: 1.75 in
• Package Quantity: 4-Pack
• Compatibility: Designed for Wilwood calipers requiring 1.75" bore seals
• Manufacturer Part Number: 130-2655

Maintain peak braking performance with the Wilwood 130-2579 Square Seal O-Ring Kit. Designed for high-heat environments and frequent cycling, these square-cut seals are critical for ensuring a leak-free interface between the caliper piston and the bore while providing the necessary rollback for consistent pedal feel.

• Seal Type: Square-cut profile
• Bore Diameter: 1.12in
• Material: High-grade elastomer for chemical and heat resistance
• Quantity: Pack of 4 seals
• MPN: 130-2579

These seals are engineered specifically for Wilwood calipers utilizing 1.12-inch pistons. They offer the tight tolerances required for professional racing and high-performance street applications where reliable piston retraction and sealing are paramount.

Maintain hydraulic integrity and prevent fluid leaks with this genuine Wilwood 130-10540 O-ring kit. These .19 round seals are specifically engineered for the internal crossover fluid passages of Wilwood DL and Dynapro series split-body calipers. During a caliper rebuild or after separating the caliper halves, replacing these crossover seals is essential to ensure a reliable seal where the fluid channel bridges the caliper bodies.

• Fits Wilwood DL and Dynapro series brake calipers
• Specifically for internal crossover port sealing between caliper halves
• Seal Profile: .19 Round Seal
• Pack Quantity: 6 pieces
• Manufacturer Part Number: 130-10540

Fits 1999-2008 Porsche 911 Carrera models (996 and 997.1 generations).

The GiroDisc Rear Caliper Rebuild Kit is designed to restore the hydraulic integrity and mechanical efficiency of your factory brake calipers. High-heat cycles and environmental contaminants eventually degrade internal seals and dust boots, which can lead to piston binding, uneven pad wear, or fluid leaks. This kit provides the specific components required to refresh the rear calipers and maintain consistent pedal feel during performance driving.

• Designed to meet or exceed OE specifications for fitment and fluid compatibility
• Restores smooth piston travel and prevents caliper dragging
• Includes high-quality elastomers resistant to thermal breakdown
• Replaces worn, cracked, or hardened internal pressure seals and external dust boots
• Manufacturer Part Number: CCRK2-031

Fits 1999-2006 Mitsubishi Lancer Evolution VI, VII, VIII, and IX models equipped with factory rear Brembo calipers.

Maintain consistent braking performance and prevent fluid leaks with the GiroDisc Rear Caliper Rebuild Kit. High-performance driving cycles expose brake components to extreme thermal stress, which eventually causes factory rubber seals and dust boots to become brittle, crack, or lose their sealing integrity. This kit provides the essential components to overhaul your rear calipers, ensuring smooth piston travel and reliable hydraulic pressure.

• Direct replacement for OE rear caliper seals and boots
• High-quality rubber construction designed for thermal stability
• Restores piston operation and prevents caliper binding
• Manufacturer Part Number: CCRK2-008

Fits 2004-2007 Subaru Impreza WRX STI.

Restore the hydraulic integrity and performance of your rear braking system with the GiroDisc Rear Caliper Rebuild Kit (CCRK2-007). This kit provides the high-quality rubber seals and dust boots required to service factory calipers that have suffered from heat fatigue or environmental wear. Replacing these components is essential for ensuring consistent piston retraction and preventing fluid leaks during high-performance or track use.

• Complete service kit for rear brake calipers
• Includes durable, high-temperature seals and dust boots
• Designed for OE caliper maintenance
• Manufacturer Part Number: CCRK2-007
• Installation Note: This specific kit requires the use of trimmed rear pads.

Fits 2014-2020 BMW M2, M3, and M4 (F8X) models equipped with factory blue calipers and 380mm front rotors.

Maintain the stopping power and hydraulic integrity of your BMW’s braking system with the GiroDisc Front Caliper Rebuild Kit. High-performance driving and repeated heat cycles eventually degrade factory seals and dust boots, which can lead to piston sticking, uneven pad wear, or fluid leaks. This kit provides the precision-engineered components required to refresh your factory Brembo-sourced calipers to peak operating condition.

• Designed specifically for the 380mm front brake configuration with factory blue calipers
• Restores consistent piston retraction and hydraulic sealing
• High-quality materials designed to withstand the thermal demands of spirited driving
• Direct replacement for original equipment seals and boots
• Manufacturer Part Number: CCRK1-186

Fits 2015+ Honda Civic Type R (FK8) models equipped with factory Brembo front calipers.

Maintain the hydraulic integrity and heat resistance of your braking system with the GiroDisc Front Caliper Rebuild Kit. Designed specifically for the high-performance demands of the Civic Type R, this kit allows you to refresh your front calipers rather than replacing them. It is an essential service item for vehicles that see frequent track use, where extreme temperatures can cause factory seals to harden and dust boots to crack or perish.

• Restores factory sealing performance and piston retraction
• Replaces worn, brittle, or torn dust boots and internal pressure seals
• Manufactured to precise tolerances for a leak-free fit within the OEM housing
• Essential for maintaining consistent pedal feel and brake modulation
• Manufacturer Part Number: CCRK1-166

Fits 2016-2020 Ford Shelby GT350 and GT350R.

The GiroDisc CCRK1-162 Front Caliper Rebuild Kit is an essential maintenance solution designed to restore the hydraulic integrity and performance of your vehicle's braking system. High-performance track driving and repeated heat cycles eventually degrade factory caliper seals and dust boots, leading to piston drag or fluid leakage. This kit provides the necessary high-temperature components to refresh the factory Brembo front calipers, ensuring smooth piston retraction and consistent pedal feel.

• Direct replacement for OE internal piston seals and external dust boots
• High-temperature resistant materials designed to withstand track-day thermal loads
• Restores factory sealing performance and prevents debris ingress
• Complete kit for servicing both front calipers
• Manufacturer Part Number: CCRK1-162

Fits 2010-2013 Audi TT RS (8J).

Maintain the braking performance and safety of your vehicle with the GiroDisc Front Caliper Rebuild Kit. This kit is specifically designed to refresh the factory front calipers on the 8J chassis Audi TT RS, ensuring optimal piston movement and hydraulic seal integrity. Over time, high heat cycles from performance driving or track use can degrade internal seals and dust boots; this kit provides the necessary components to restore reliable caliper operation and consistent pedal feel.

• Specifically engineered for 2010-2013 Audi TT RS (8J) factory front calipers
• Restores proper piston retraction and prevents fluid leaks
• Designed to withstand the high thermal loads of performance braking
• Direct replacement for original equipment internal components
• Manufacturer Part Number: CCRK1-152

Fits select 2017-2019 Porsche 911 Carrera (991.2) models equipped with Porsche Ceramic Composite Brakes (PCCB).

Maintain the stopping power and hydraulic integrity of your 991.2 Carrera with the GiroDisc Front Caliper Rebuild Kit (CCRK1-146). Designed specifically for high-performance 6-piston front calipers paired with ceramic rotors, this kit provides the essential components to refresh calipers that have been subjected to the extreme heat cycles of track use or spirited driving. Replacing worn seals and boots ensures smooth piston retraction and prevents fluid leaks that can compromise braking safety.

• Engineered specifically for vehicles with Porsche Ceramic Composite Brakes (PCCB)
• Includes high-temperature pressure seals and dust boots
• Restores factory piston movement and pedal feel
• Direct replacement for OE caliper internal components
• Manufacturer Part Number: CCRK1-146

Fits 1999-2012 Porsche 911 Carrera S and 4S (996 and 997 chassis).

Restore the hydraulic integrity and braking performance of your front calipers with the GiroDisc Front Caliper Rebuild Kit (MPN: CCRK1-032). Heat cycles from performance driving and track use eventually degrade factory seals and crack dust boots, which can lead to fluid leaks, sticking pistons, or uneven pad wear. This kit allows you to overhaul your factory front calipers to maintain consistent pedal feel and reliable stopping power.

• Specifically engineered for Porsche 911 (996/997) Carrera S and 4S front calipers
• High-temperature resistant seals and dust boots designed for demanding driving conditions
• Prevents piston drag and ensures smooth hydraulic operation
• Direct replacement for worn or damaged OE caliper internals
• Manufacturer Part Number: CCRK1-032

Fits 1999-2008 Porsche 911 Carrera (996 and 997.1 generations) front calipers.

Restore the hydraulic integrity and braking performance of your Porsche with the GiroDisc Front Caliper Rebuild Kit. Over time, the intense heat cycles of performance driving can cause internal piston seals to harden and external dust boots to crack. This kit replaces those worn components, preventing fluid leaks and ensuring that the pistons retract smoothly to reduce brake drag and heat build-up.

• Direct fit for Porsche 911 Carrera 996 and 997.1 factory front calipers
• High-quality seals designed to withstand performance operating temperatures
• New dust boots protect caliper pistons from road debris and contaminants
• Ensures consistent pedal feel and reliable hydraulic pressure
• Manufacturer Part Number: CCRK1-031

Fits 1999-2006 Mitsubishi Lancer Evolution 6, 7, 8, and 9 (Evo VI-IX) models equipped with factory Brembo front calipers.

Maintain the hydraulic integrity and piston response of your braking system with the GiroDisc Front Caliper Rebuild Kit. Over time, exposure to extreme brake temperatures on the street and track causes factory rubber components to become brittle, leading to fluid seepage or sticking pistons. This kit provides high-quality replacement seals and dust boots to restore proper caliper function and ensure a consistent pedal feel.

• Direct replacement for worn original equipment seals and dust boots
• Restores proper piston retraction and sealing performance
• Engineered to withstand high-performance braking temperatures
• Designed specifically for factory Brembo front calipers
• Manufacturer Part Number: CCRK1-008