How to service and repair the Brake Master Cylinder on Chevrolet Cobalt?

Make sure you are safe before working on the brake master cylinder by reading the Brake Fluid Irritant Caution and being aware of how brake fluid may affect paint and electrical parts. Make sure to use only Set the brake master cylinder's mounting flange into a bench vise so you can work on the back of the main piston. First, remove the master cylinder reservoir cap and diaphragm. Then, put suitable fittings onto the master cylinder ports for hose connection. Put transparent hoses on the fittings and bring them into the reservoir, making sure to block the clutch hose port if working on a manual transmission. Put enough fresh brake fluid in the reservoir until it reaches halfway, making certain the hose ends are covered. With a gentle, round-tipped implement, make the primary piston move in and out about 25 mm a few times and look for the fluid running from the ports. you will find the piston harder to push and requires more force as air escapes, while the movement gets shorter. Keep going with this until the fluid runs smoothly out of the ports without any air bubbles. Then, take off the transparent hoses, fit the reservoir cap and diaphragm back on, and take out the fittings after wrapping the master cylinder in a clean cloth to stop any fluid from leaking. When you're done, take the master cylinder out of the vise.

OEM Chevrolet Cobalt Brake Master Cylinder

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9 Brake Master Cylinders found

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Chevrolet Cobalt Master Cylinder Part Number: 15857886
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Chevrolet Cobalt | LS, LT, Sport | 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS
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Chevrolet Cobalt Master Cylinder Part Number: 20836832
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Brake Master Cylinder
- Replaces: 25820077
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2010 Chevrolet Cobalt | LS, LT, Sport, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS
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Chevrolet Cobalt Master Cylinder Part Number: 20762129
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Clutch Master Cylinder; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Chevrolet Cobalt | Base, LS, LT, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS
View related parts
Chevrolet Cobalt Master Cylinder Part Number: 20762128
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Clutch Master Cylinder; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Chevrolet Cobalt | Base, LS, LT, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS
View related parts
Chevrolet Cobalt Master Cylinder Part Number: 20762127
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Chevrolet Cobalt | Base, LS, LT, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS
View related parts
Chevrolet Cobalt Master Cylinder Part Number: 20762126
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Chevrolet Cobalt | Base, LS, LT, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS
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Chevrolet Cobalt Master Cylinder Part Number: 19209274
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Brake Master Cylinder
- Replaces: 22721986
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Chevrolet Cobalt | Base, LS, LT, LTZ, Sport, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS
View related parts
Chevrolet Cobalt Master Cylinder Part Number: 19209205
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Brake Master Cylinder
- Replaces: 15857887
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Chevrolet Cobalt | LS, LT, Sport, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS
View related parts
Chevrolet Cobalt Master Cylinder Part Number: 19209201
Product Specifications
- Other Name: Cylinder, Brake Master Cylinder; Brake Master Cylinder
- Replaces: 22721987, 15784508
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Chevrolet Cobalt | Base, LS, LT, LTZ, Sport, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS

Chevrolet Cobalt Brake Master Cylinder

Want to cut long-term maintenance and repair costs? Choose OEM Brake Master Cylinder. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet Cobalt parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet Cobalt Brake Master Cylinder includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

The Brake Master Cylinder in Chevrolet Cobalt vehicle is a crucial component of the brake system that help in translation of the force exerted on the brake pedal into hydraulic pressure. This hydraulic pressure is then transferred to the slave cylinders which in turn apply pressure to the brakes and thus create the needed friction to bring the automobile to a stand still. The design is normally characterized by piston and seal, springs that are contained in cast iron or aluminum while the fluid containers may be integrated or separate depending on the model in question. Chevrolet Cobalt models employ dual circuit master cylinders so that the car may still be braked even if one of the circuits has failed to function. This design is safe because it does not forfeit all braking in the event of an emergency. Malfunctions are typical of the Brake Master Cylinder: leakage of brake fluid and internal damage that affects braking quality. We recommend their periodic testing of leaks and moisture and the consequent effect on the safe operation of the master cylinder as well as the vehicle in general.

Chevrolet Cobalt Brake Master Cylinder Parts Questions & Experts Answers

Master Cylinder
19209201
Q: How to service and repair the Brake Master Cylinder on Chevrolet Cobalt?
A:
Make sure you are safe before working on the brake master cylinder by reading the Brake Fluid Irritant Caution and being aware of how brake fluid may affect paint and electrical parts. Make sure to use only Set the brake master cylinder's mounting flange into a bench vise so you can work on the back of the main piston. First, remove the master cylinder reservoir cap and diaphragm. Then, put suitable fittings onto the master cylinder ports for hose connection. Put transparent hoses on the fittings and bring them into the reservoir, making sure to block the clutch hose port if working on a manual transmission. Put enough fresh brake fluid in the reservoir until it reaches halfway, making certain the hose ends are covered. With a gentle, round-tipped implement, make the primary piston move in and out about 25 mm a few times and look for the fluid running from the ports. you will find the piston harder to push and requires more force as air escapes, while the movement gets shorter. Keep going with this until the fluid runs smoothly out of the ports without any air bubbles. Then, take off the transparent hoses, fit the reservoir cap and diaphragm back on, and take out the fittings after wrapping the master cylinder in a clean cloth to stop any fluid from leaking. When you're done, take the master cylinder out of the vise.