10 best automotive replacement master cylinders
Automotive replacement master cylinders are critical components of a vehicle's hydraulic brake system. These master cylinders play a pivotal role in transmitting the force applied to the brake pedal into hydraulic pressure, which is then used to activate the brake calipers or wheel cylinders, ultimately stopping the vehicle. Here's what you need to know about them:
Function: The master cylinder acts as the primary hydraulic control unit for the vehicle's brake system. When you press the brake pedal, it creates hydraulic pressure in the master cylinder. This pressure is then transferred through brake lines to the individual brakes, causing them to engage and slow down or stop the vehicle.
Construction: Master cylinders are typically made of metal and contain a piston and a reservoir for brake fluid. The piston is connected to the brake pedal, and when you apply pressure to the pedal, it moves the piston, forcing brake fluid through the brake lines.
Types of Master Cylinders: There are two primary types of master cylinders:
- Single Master Cylinder: Older vehicles often have a single master cylinder, which controls the brake system for the entire vehicle. If a single master cylinder fails, it can result in complete brake failure, which is why modern vehicles use dual master cylinders.
- Dual Master Cylinder: Most modern vehicles are equipped with dual master cylinders, also known as a dual-circuit master cylinder. These have two separate hydraulic circuits, one for the front brakes and one for the rear brakes.If one circuit fails, the other can still provide some braking capability, increasing safety.
Signs of Wear or Failure: Symptoms of a failing master cylinder may include:
- A soft or spongy brake pedal.
- Brake fluid leakage around the master cylinder.
- Reduced braking efficiency or a loss of braking power.
- Illuminated brake warning light on the dashboard.
Replacement: If your master cylinder is showing signs of wear or failure, it's crucial to replace it promptly to maintain safe braking performance. Replacement master cylinders can be found at automotive parts stores and online retailers. Ensure you choose a master cylinder that is compatible with your vehicle's make and model.
Installation: Replacing a master cylinder involves:
- Safely lifting and securing the vehicle.
- Removing the brake lines from the old master cylinder.
- Detaching the master cylinder from the brake booster or firewall.
- Installing the new master cylinder in its place.
- Reconnecting the brake lines and bleeding the brake system to remove air bubbles.
- Testing the brakes to ensure they function correctly.
Bleeding the Brake System: Bleeding the brake system is a crucial step after replacing the master cylinder. It removes air from the brake lines, which can cause a loss of braking performance. Follow the manufacturer's recommended procedure for bleeding your specific vehicle's brake system.
In summary, automotive replacement master cylinders are integral components of a vehicle's braking system, responsible for converting pedal pressure into hydraulic force to apply the brakes. Regular maintenance and prompt replacement of a failing master cylinder are essential for safe and reliable braking performance. If you experience any signs of master cylinder failure, it's important to address the issue promptly to ensure your vehicle's safety.
Below you can find our editor's choice of the best automotive replacement master cylinders on the marketProduct description
CARDONE Remanufactured Master Cylinders are re-engineered, built and tested to match O.E. performance. Each unit features new, O.E.-quality seals and cups to ensure leak-free, long-lasting performance. Cast-iron master cylinders are treated with a premium protective coating to minimize rust and extend product life. All units are 100% computer tested to ensure perfect fit and function.
- As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit
- Only new O.E.-quality seals and cups are used in the remanufacturing process to ensure O.E. performance and reliability; all rubber components meet S.A.E. specifications
- Bores meet critical micro-finish specifications to eliminate pitting and corrosion, a cause of premature failure; cast-iron master cylinders feature a premium protective coating to minimize rust and extend unit life
- Piston assemblies are height-gauged to ensure the master cylinder equals O.E. performance; plastic reservoirs are vacuum-tested to ensure they are leak free; bleeding kits are supplied to make the bleeding process faster and easier (where applicable)
- Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80%
Product features
Re-engineered, built and tested to match O.E. performance
Each unit features new, O.E.-quality seals and cups to ensure leak-free, long-lasting performance. Cast-iron master cylinders are treated with a premium protective coating to minimize rust and extend product life. All units are computer tested to ensure perfect fit and function.
Premium Protective Coating
Cast-iron master cylinders feature a premium protective coating to minimize rust, extending on-car and on-shelf life.
O.E.-Quality Seals and Cups
New O.E.-quality seals and cups are installed to prevent leakage and ensure like-new performance and reliability.
Vacuum-Tested Reservoirs
Plastic reservoirs are vacuum-tested to ensure proper function (where applicable).
FAQs
Does a step bore style master cylinder require a specific bleeding process?
- The first step to bench bleeding a step bore is to slowly depress the master cylinder piston, then release slowly and wait 20 seconds before depressing again. NEVER pump piston/pedal with a step bore style master cylinder. Follow the same process on the vehicle.
My original master cylinder leaked out of the back of the piston into the booster area. Why?
- Check booster for a defective push rod seal. If this seal is bad, it could drain the brake fluid out of the master cylinder.
Product description
ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them the high quality replacement ideal for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Professional Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement brake master cylinders are manufactured to meet your expectations for fit, form, and function.
- Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
- Pressure tested to ensure safe and confident braking
- Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
- Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
- Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear
User questions & answers
Question: | Hello does this unit have a sensor |
Answer: | Yes it does. Fit my 02 Accord just fine. 3.0 V6 engine. |
Question: | Does this work on a z71 tahoe with rear Dual piston disc brakes |
Answer: | The only way you can tell if your radiator cap is bad, is to check it when it's hot and after you turn your car off, see if it is leaking. |
Question: | Hello does this unit have a sensor |
Answer: | Yes this is the right radiator cap unless the radiator was replaced with an aftermarket radiator. |
Question: | Does this work with a vac boost |
Answer: | I have used Gates items for decades and they have never failed. I am still using this cap, no issues. I have had other caps last for about 5 years, but I do change them out when they are at the end of their life span, about 4 - 5 years. |
Product description
Raybestos is world-renowned in the automotive aftermarket as a leading manufacturer of brake parts. Products includes friction, rotors, drums, calipers, hub assemblies and hydraulics, matches or exceeds OE form, fit and function. Each product is extensively tested to ensure you are receiving a high-quality and reliable product.
- Raybestos is world-renowned in the automotive aftermarket as a leading manufacturer of brake parts
- Products includes friction, rotors, drums, calipers, hub assemblies and hydraulics, matches or exceeds OE form, fit and function
- Each product is extensively tested to ensure you are receiving a high-quality and reliable product
- Leading manufacturer of brake parts
Product description
New, not remanufactured master cylinder. Reservoirs, caps and fluid sensors are supplied in the majority of units.
- New, not remanufactured
- Reservoirs, caps and fluid sensors are supplied in the majority of units
User questions & answers
Question: | Why is there two different numbers and they both say it fits a 2002 gmc sierra 1500hd??? dorman m630031 new brake master cylinder and dorman m |
Answer: | Yes |
Question: | Where is this made |
Answer: | It is 20 psi. |
Question: | What is the width of the mounting holes |
Answer: | It looks like 19045-RAA-003 is the part you need. To be certain, enter your VIN at MagAuto website, then search your part number. It will tell you if the part fits your vehicle. |
Product description
CENTRIC OEM REPLACEMENT BRAKE MASTER CYLINDER, COMPLETE READY TO INSTALL UNIT -- Original Equipment Quality, Direct Fit Replacement Part Designed For Easy No Hassle Installation, Includes Reservoir And Cap, Brake Sensor Switch, OEM Matching Cylinder Material And Casting And Leak Free, Factory Style Connections
- The package length is 27.94 centimeters
- The package height is 11.938 centimeters
- The package width is 14.986 centimeters
- Package Weight : 3.9 pounds
Product description
Centric Parts Premium Brake Master Cylinders are connected to the brake pedal which multiplies the applied force for effective braking. They include pistons and reservoir which changes the pressure and amount of brake fluid in the brake line required for braking. These cylinders transmit the applied force to the brakes for proper controlling of the vehicle.
- Delivers required force for effective braking
- Facilitates easy engaging and disengaging of the brake shoes
- Manufactured under high quality standards
- Highly durable and reliable
- Features O.E. fit design
Product description
New, not remanufactured master cylinder. Reservoirs, caps and fluid sensors are supplied in the majority of units.
- New, not remanufactured
- Reservoirs, caps and fluid sensors are supplied in the majority of units
Product description
ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them the high quality replacement ideal for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Professional Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement brake master cylinders are manufactured to meet your expectations for fit, form, and function.
- Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
- Pressure tested to ensure safe and confident braking
- Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
- Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
- Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear
User questions & answers
Question: | Will this fir my 05 suburban ? will i need anything else to complete my repair i.e. gasket etc |
Answer: | it is 2 inch. |
Question: | MADE IN |
Answer: | Mine does not move or slip off dash during sudden turns. Not sure what's inside the material to keep it weighted down; material is a sturdy nylon (smooth bottom). I would purchase this item again...very pleased with it. |
Question: | Does it fit 2002 Cadillac Escalade |
Answer: | Yes, this is compatible with a Garmin Drive 61. |
Question: | What is the bore size |
Answer: | I don't have a dash cam so I'm not sure, sorry. I use it with the Garmin GPS and it's great for that. |
Product description
New, not remanufactured master cylinder. Reservoirs, caps and fluid sensors are supplied in the majority of units.
- New, not remanufactured
- Reservoirs, caps and fluid sensors are supplied in the majority of units
- Forward Outlet Size-1/2-20. Bore Diameter-1.25 inch
User questions & answers
Question: | What's the warranty on this |
Answer: | YOU CAN GO BELOWED YOUTUBE CHANNEL.. https://www.youtube.com/watch?v=kFEVf3_bCRo |
Question: | what type of brake system is this model for |
Answer: | No eye cream or serums but trial size essence that come along with full size skin toner and emulsion |
Question: | Did u receive a bleeder tool with this master cylinder |
Answer: | There are two skins (160ml) and emulsion (160ml). Three small samples. Contains skins (31ml), emulsion (31ml), and essence (10ml). Thank you. |
Question: | I need this for 2004 silverado z71 4x4, mine does not have the sensor and there is no connector for it. is that ok |
Answer: | 5pcs as it showing |
Product description
This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement. Vehicle model years this part fits: Lexus RX300: 2001, 2002
- Precise replacement - cylinder housing is constructed to match the casting material of the original part and ensure similar performance
- Durable design - all rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid
- 100% new - made entirely of new materials, not remanufactured, to ensure highest quality and safety
- Strict specifications - made to meet rigorous SAE International standards
- Ensure fit – to make sure this part fits your exact vehicle, input your make, model and trim level into the Garage
User questions & answers
Question: | Does this part fits left and right hand drive |
Answer: | yes. this line is anti aging line |
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