2003 BMW 525i Brake Parts

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CARDONE Remanufactured Power Brake Boosters are re-engineered, built and tested to match O.E. performance. Original designs are scrutinized for potential improvement and, where applicable, design upgrades are implemented to produce a more durable part than the original. All units are 100% tested to ensure perfect fit and function.

Product Features:

• 100% O.E. quality seals, diaphragms and check valves are installed on every unit for like-new performance and reliability.
• Exclusive rust-prohibitive finishing process extends unit life.
• Master cylinder output rods are pre-adjusted (when included) for easier and faster installation.
• All units are 100% tested to ensure reliable performance.
• Guaranteed fit and function.

CARDONE Master Cylinder Bench Bleeder Tool cuts typical bleeding procedures in half and is a more effective way to purge the brake system of air than other bleeding procedures. This handy, innovative tool is a must, just as bench bleeding is for removing all the air from your brake system, allowing you to spend less time in the garage, and more time on the road.

Product Features:

• Each unit is 100% new, providing consistent performance when servicing your brake system
• Easy to transfer for on-the-spot master cylinder bleeding
• Fluid measurements clearly displayed on each unit in both ounces and milliliters for convenience
• Easy to clean to ensure no cross contamination
• Durability for long lasting performance

Brake Pressure Switc

Carquest Premium Brake Calipers are manufactured to meet or exceed original equipment manufacturer specifications for performance and durability. Where applicable, Carquest Premium Brake Calipers feature a specially formulated OE style zinc di-chromate anti-corrosion finish that provides superior rust protection in all conditions. Carquest Premium Brake Calipers feature new OE design, stainless steel pistons manufactured for maximum durability, and precision machined for an exacting fit and smooth application of braking force. Carquest Premium Brake Calipers include 100% new OE design dust boots and EPDM rubber seals that provide increased resistance to thermal deterioration and years of-leak free operation. Carquest Premium Brake Calipers include application-specific brackets and abutment hardware where required, for easy installation and confident restoration of stopping power. 100% end-of-line inspection and pressure testing guarantees perfect performance right out of the box.

Product Features:

• Meets or exceeds original equipment specifications for performance and durability
• OE design stainless steel pistons provide maximum durability and are precision machined for a perfect fit in the caliper body
• Application-specific caliper bodies for easy installation
• Brackets included where required, for complete system restoration
• Meets or exceeds original equipment specifications for performance and durability
• OE design stainless steel pistons provide maximum durability and are precision machined for a perfect fit in the caliper body
• Application-specific caliper bodies for easy installation
• Brackets included where required, for complete system restoration
• OE style, zinc di-chromate anti-corrosion finishes provide superior resistance to rust on all iron caliper bodies and brackets
• 100% new, OE style rubber dust boots and EPDM rubber seals for improved resistance to thermal deterioration and cracking
• New bleeder screws, banjo bolts, and crush washers included for a complete repair
• OE Style, stainless steel pad abutment hardware included
• 100% end-of-line inspection and pressure testing ensures quality and performance
• Caliper finish or coating may vary

The ATE Caliper Guide Pin Cover is an ideal high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

• Premium Original Equipment replacement
• Provides performance and dependability
• Manufactured to meet OE specifications

Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

The Brembo brand has a range of over 1,600 items, which covers a remarkable 98% of all passenger cars and commercial vehicles on the roads in Europe today. Brembo manufactures an OE-Quality Brake Disc that assures maximum performance and enhanced driving comfort and offers with its aftermarket rotors the same levels of quality, technology and performance that are found in many of the prestigious OEM fitments. PVT pillar venting technology: (Vented Rotors Only) Brembo PVT discs feature the exclusive pillar venting system patented by Brembo, which improves cooling capacity and increases resistance to thermal cracking by over 40%. Fixing screw kits: discs are supplied with all the necessary fixing hardware for simpler, more efficient and safer installation

Product Features:

• OE-Equivalent and a direct fit replacement
• Made of special cast iron with high carbon content
• Pillar Venting Technology (Vented Rotors Only)
• Easy Check wear indicator system
• Provides a higher friction coefficient.
• Resistant to vibrations and noise.

This automotive brake hydraulic hose was precision-engineered to match the fit, function and performance of the original brake hose on specific vehicles and positions to ensure safe, long-lasting durability as part of a complete brake repair.

Product Features:

• Ideal replacement – precision-engineered to match the performance of the original brake hose on specific vehicles
• Position-specific – manufactured to precise measurements to provide an exact fit and easy installation
• Quality assured – materials tested to exacting government-regulated safety and durability standards
• Durable design – made with EPDM rubber and specially coated, corrosion-resistant fittings
• Brand may vary by location

Brakes are designed as a system and all the parts need to work together for best performance. Industry brake service experts agree – when brake friction materials are ready to be replaced, the hardware is too. A complete brake job that includes new hardware goes a long way toward preventing comebacks. Changing out your Rubber Pin Boot or Slider Bushing Kit will ensure the guide pins are clean and free from debris for smoother braking.

Product Features:

• This part matches Original Equipment (OE) quality specifications
• Easy and fast replacement
• Prevents noise and premature wear
• Provides longer brake life and performance

PowerStop is on a mission to deliver an easy way for any driver to upgrade their brakes – no matter where or how they use their vehicle. Our Z26 Street Warrior Brake Upgrade Kit is recommended for high performance, high horsepower muscle and modified cars. This kit comes with everything you need for easy installation, including pads, rotors and stainless-steel hardware. The Drilled & Slotted rotors and Carbon-Fiber Ceramic pads combine to provide shorter stops under the most demanding conditions. This PowerStop Z26 Street Warrior Brake Upgrade Kit is the affordable bolt-on upgrade that delivers more than just the braking power you need to rein in all those ponies. With our low-dust and low-noise formula, you’ll spend less time cleaning those wheels and more time enjoying what matters most – the drive.

Product Features:

• This complete brake kit has been engineered to handle the increased demand of street-driven muscle cars and performance vehicles
• Proprietary Carbon-Fiber Ceramic Z26 brake pads enhance heat dissipation versus a typical ceramic brake pad for better stopping power at high speed
• Stainless-steel pad shims resist the increased temperatures common on high performance applications
• Low-dust braking validated through on-vehicle 3rd party tests in Los Angeles, showing on average 30% less dust versus OE
• Drilled & Slotted performance rotors provide maximum cooling
• Bolt-on upgrade for stock brakes, no modifications necessary
• Includes stainless-steel installation hardware and high-temperature ceramic brake lubricant
• Brake rotor, pad & hardware engineered to work together to increase stopping power & enhance heat dissipation for your performance car
• Rotors are zinc plated for maximum protection against rust.
• Includes 1 Front & 1 Rear Sensor Wire
• Buy with confidence from the originator & industry leader of brake kits

ATE Disc Brake Caliper Repair Kit contains the components necessary for piston seal repair of the Disc Brake Caliper. All of the rubber components are of high-quality EPDM compound for resistance to glycol-based brake fluid.

Product Features:

• Guaranteed factory fit to original equipment specifications
• Meets or exceeds original equipment factory safety standards

This parking brake cable has been engineered and tested to match the fit, function and performance of the original brake cable on specific vehicles. It features a corrosion-resistant design and durable materials for added strength and longevity.

Product Features:

• Trustworthy replacement – engineered and tested to match the fit, function and performance of the original brake cable on specific vehicles
• Quality design – inner cables are sheathed and lubricated to provide improved durability
• Long-lasting construction – flexible casings are completely covered with conduit to prevent wear and tear of interior cables
• Tough materials – zinc-plated fittings prevent corrosion

PowerStop is on a mission to deliver an easy way for any driver to upgrade their brakes – no matter where or how they use their vehicle. Our Z26 Street Warrior Brake Upgrade Kit is recommended for high performance, high horsepower muscle and modified cars. This kit comes with everything you need for easy installation, including pads, rotors and stainless-steel hardware. The Drilled & Slotted rotors and Carbon-Fiber Ceramic pads combine to provide shorter stops under the most demanding conditions. This PowerStop Z26 Street Warrior Brake Upgrade Kit is the affordable bolt-on upgrade that delivers more than just the braking power you need to rein in all those ponies. With our low-dust and low-noise formula, you’ll spend less time cleaning those wheels and more time enjoying what matters most – the drive.

Product Features:

• This complete brake kit has been engineered to handle the increased demand of street-driven muscle cars and performance vehicles
• Proprietary Carbon-Fiber Ceramic Z26 brake pads enhance heat dissipation versus a typical ceramic brake pad for better stopping power at high speed
• Stainless-steel pad shims resist the increased temperatures common on high performance applications
• Low-dust braking validated through on-vehicle 3rd party tests in Los Angeles, showing on average 30% less dust versus OE
• Drilled & Slotted performance rotors provide maximum cooling
• Bolt-on upgrade for stock brakes, no modifications necessary
• Includes stainless-steel installation hardware and high-temperature ceramic brake lubricant
• Brake rotor, pad & hardware engineered to work together to increase stopping power & enhance heat dissipation for your performance car
• Rotors are zinc plated for maximum protection against rust.
• Includes 1 Front Sensor Wire
• Buy with confidence from the originator & industry leader of brake kits

Carquest Wearever rotors meet or exceed original equipment specifications while delivering superior stopping power. Carquest Wearever rotors are manufactured with proper harmonic design and non-directional finish that eliminate noise and enhance pedal feel. Our rotors are designed to effectively dissipate heat, helping to eliminate brake fade and increase the life of your pads and rotors. Carquest Wearever rotors are designed for long-lasting and quiet braking with superior performance.

Product Features:

• Meets or exceeds OE design for superior stopping power
• Exceeds ISO manufacturing guidelines (International Organization for Standardization)
• Matches OE vane size for proper cooling
• Optimal metallurgy and casting thickness to preventing warping
• Air gap eliminates brake fade and increases pad life
• Non-directional finish decreases break-in time

ATE Continental is further extending its range of Brake Caliper Pin Boot Kits for ATE brake calipers. ATE caliper Pin Boot Kits are an essential component of ATE-designed fist floating brake calipers. The floating caliper consists of a holder and housing, which is located in rubber damping pins and sleeves.

Product Features:

• Reduced cost
• OE Quality
• Complete Kit

Caliper housing spring retaining clips are an essential component of ATE-designed fist floating brake calipers. The fist floating caliper consists of a holder and housing, which is located in rubber damping sleeves. It slides within the holder together with the outer brake pad while as the pad wears. To prevent the housing from lifting off the pad and causing noise issues, the caliper is pulled against the brake pad by the caliper housing spring retaining clip. These clips are exposed to continuous corrosion attack and should therefore also be replaced each time the brake pads are changed.

Product Features:

• Premium Original Equipment replacement
• Provides performance and dependability
• Manufactured to meet OE specifications

Wearever brake shoes are 100% new OE replacement brake shoes and come with coated steel to guard against rust, salt and road grime. Wearever brake shoes provide exceptional stopping power, virtually noise free and exact fitment to the original equipment brake shoes.

Product Features:

• Wearever Brake Shoes come bonded or riveted based on OE design.
• Wearever Brake Shoes are coated to prevent rust.
• Wearever Brake Shoes are 100% New not remanufactured.
• Brand may vary by location

Brakes are designed as a system and all the parts need to work together for best performance. The kits provide advance protection for your brake by assuring brakes perform at an optimum level.

Product Features:

• This part matches Original Equipment (OE) quality specifications
• Exact fitment and original replacement
• Helps deliver a quieter, more efficient braking system
• Low-friction PTFE coating to reduce drag
• Manufactured with quality materials to suppress high stress levels

Brake Adjuster

Dorman’s Disc Brake Caliper Repair Kit contains the components necessary for repair of the Disc Brake Caliper. All of the rubber components are of high-quality EPDM compound for resistance to glycol-based brake fluid.

Product Features:

• Replacement restores disc brakes to proper operation
• Replacement prevents uneven braking
• Direct replacement for a proper fit
• Manufactured to strict engineering quality standards

TRW Automotive supplies master cylinder brake actuation systems featuring quality and performance. TRW’s master cylinder product portfolio covers a wide range of vehicles, from small cars up to truck and SUV platforms. These systems can offer lighter weight, with options such as micro master cylinders and aluminum master cylinders through to heavy-duty master cylinders designed for the durability and variable loading conditions of the light-truck market. These systems function with the help of a series of brake fluid sensors, which are located on the reservoir tank. This series includes vacuum sensors, brake light switches, and travel sensors.

Product Features:

• Low volume uptake
• High efficiency
• Low pressure differential between primary and secondary circuits
• Good bleedability
• Cr6-free surfaces for vehicles built from July 2007 (as required by law)
• Central valve version suitable for ABS

The ATE Caliper Guide Pin is an ideal high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

• Premium Original Equipment replacement
• Provides performance and dependability
• Manufactured to meet OE specifications

Carquest Premium Brake Calipers are manufactured to meet or exceed original equipment manufacturer specifications for performance and durability. Where applicable, Carquest Premium Brake Calipers feature a specially formulated OE style zinc di-chromate anti-corrosion finish that provides superior rust protection in all conditions. Carquest Premium Brake Calipers feature new OE design, stainless steel pistons manufactured for maximum durability, and precision machined for an exacting fit and smooth application of braking force. Carquest Premium Brake Calipers include 100% new OE design dust boots and EPDM rubber seals that provide increased resistance to thermal deterioration and years of-leak free operation. Carquest Premium Brake Calipers include application-specific brackets and abutment hardware where required, for easy installation and confident restoration of stopping power. 100% end-of-line inspection and pressure testing guarantees perfect performance right out of the box.

Product Features:

• Meets or exceeds original equipment specifications for performance and durability
• OE design stainless steel pistons provide maximum durability and are precision machined for a perfect fit in the caliper body
• Application-specific caliper bodies for easy installation
• Brackets included where required, for complete system restoration
• Meets or exceeds original equipment specifications for performance and durability
• OE design stainless steel pistons provide maximum durability and are precision machined for a perfect fit in the caliper body
• Application-specific caliper bodies for easy installation
• Brackets included where required, for complete system restoration
• OE style, zinc di-chromate anti-corrosion finishes provide superior resistance to rust on all iron caliper bodies and brackets
• 100% new, OE style rubber dust boots and EPDM rubber seals for improved resistance to thermal deterioration and cracking
• New bleeder screws, banjo bolts, and crush washers included for a complete repair
• OE Style, stainless steel pad abutment hardware included
• 100% end-of-line inspection and pressure testing ensures quality and performance
• Caliper finish or coating may vary

Akebono EURO® Ultra-Premium ceramic brake pads provide exactly the ideal vehicle control and performance response intended by the manufacturers of European makes. Maintain the enhanced pedal feel of European braking performance with brake pads and friction formulas engineered specifically for your vehicle and manufactured in the USA. Brake Pads That Ensure Optimal Responsiveness and Cleaner Wheels European car owners across North America now have a brake pad solution that will keep their wheels virtually free from dust and provide the European stopping power they expect. The use of our exclusive, highly advanced ceramic brake pad technology means that Akebono’s EURO Ultra-Premium brake pads provide excellent stopping power while extending rotor life and virtually eliminating brake dust, so the wheels on your European vehicle will remain their cleanest. In addition, Akebono EURO Ultra-Premium ceramic brake pads control noise, vibration, and harshness (NVH) and help ensure longer rotor life. They are the ultimate upgrade for semi-metallic and low-metallic brake pads. Akebono: The Industry Standard for European Manufacturers For over two decades, Akebono Ceramic Technology® (ACT) has been standard on many of North America’s passenger cars, light trucks, and SUVs and has set the benchmark for ceramic pads used in OE vehicle production. Now European manufacturers request Akebono brake products, and we can deliver that level of reliability to your replacement brake pads. Akebono manufactures replacement disc pads that contain the same materials, engineering, quality standards, and advanced technologies used to create our original ceramic brake pads. The use of Akebono ceramic brake pads ensures customer satisfaction and eliminates unnecessary return visits to the shop.

Product Features:

• Ultimate upgrade for OE semi-metallic, organic and low-metallic brake pads
• Ultra-Quiet – controls noise, vibration and harshness level
• European braking performance with enhanced pedal feel
• Extremely rotor friendly for longer rotor life
• Friction formulas specially designed for European vehicles

WJB Automotive wheel hub assemblies are made with high precision through state-of-the-art technology and manufactured with strict quality-control criteria. Every wheel hub assembly is specifically designed to fit the designated applications and may be used as a direct replacement for the original part. Each part is engineered using OE data and measurements to ensure fitment, performance, and longevity.

Product Features:

• Fitment and function are ensured by precision machining, rigorous testing, and meticulous inspection of material and components.
• WJB Automotive wheel hub assemblies are designed to meet stringent fatigue requirements in order to reduce premature failure.
• Reinforced seal design material allows for optimal performance in harsh environments.
• WJB Automotive wheel hub assemblies undergo heat treatment and cold-forming processes that harden the surface ensuring high-temperature resistance and durability.
• Where applicable, pre-installed speed sensors will automatically sync to the vehicle’s anti-lock braking system upon successful installation and provide accurate speed-reading data.
• Brand may vary by location

The Wearever brand offers a complete line of quality products that are appealing alternatives to higher priced brands without sacrificing quality, durability or performance. Wearever Brake Pad Wear Sensors offer an OE safety feature designed to warn the driver when a brake pad is worn or at the end of its life cycle.

Product Features:

• Triggers a warning light on the dashboard
• Should be replaced each time the brake pad is replaced
• Not available for all makes and models, refer to your vehicle’s owner Manual to validate the number of brake pad wear sensors are required, when applicable

PEX electronic brake pad wear sensors are engineered and manufactured to original equipment specifications and are designed to withstand the extreme heat generated by the brake pads. The engineers at PEX make certain that all materials, parts and tolerances meet the same high standards as the OE brake sensors they supply to brake manufacturers and auto makers worldwide.

Product Features:

• Exact Replacement with OE Fittings and Connectors
• Resistant to Extreme High Heat
• Highly Durable
• Supplied with all required hardware
• PEX is an OE supplier to Brake and Vehicle Manufacturers