Why do brakes need to be replaced in the first place?

Friction material on the brake pad contacts the rotors to slow the vehicle. In time, that material wears away and the pads must be replaced. Sometimes the rotors and calipers must also be replaced.

What’s the squealing sound I hear when braking?

Over time, wear indicators in brake pads may contact the rotors’ surface when braking, resulting in a metallic squealing sound. Vehicles equipped with wear sensors may also provide an alert that minimum brake pad thickness has been reached.

What if it’s more of a grinding sound?

If all the friction material has been worn away, the metal backing plate of the brake pad will be the material in contact with the rotor during braking. It causes a grinding sound and braking performance is often diminished.

Why do the brakes seem to pulsate when stopping?

It may be due to worn brake pads, unevenly worn rotors or unevenly worn tires. Have the pulsation diagnosed as soon as possible to avoid the possibility of greater brake system wear or damage.

What about vibrations or shaking in the steering wheel?

This is more serious than pulsation. If the brakes are very worn or the rotors are unevenly worn, there can be a significant vibration or shaking in the steering wheel when braking. It may mean brake service is needed immediately.

Gm Genuine Parts 178 0911 84602473 Power Brake Booster

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚦 Stop Strong, Drive Confident – The Power Behind Every Brake

BOOST YOUR BRAKING POWER - Amplifies force applied to the master cylinder, delivering enhanced stopping power when it matters most.
OE QUALITY YOU CAN TRUST - Manufactured to original equipment standards and rigorously tested for durability and reliability.
RESTORE PEAK BRAKE PERFORMANCE - Ideal for replacing worn boosters to regain factory-level brake responsiveness and safety.
PRECISION ENGINEERED FOR GM VEHICLES - Designed and validated by GM engineers to ensure perfect fit and performance for Chevrolet, Buick, GMC, and Cadillac models.
SEAMLESS INTEGRATION WITH LATEST TECH - Regularly updated with new materials and technologies to keep your braking system cutting-edge.

The GM Genuine Parts 178-0911 Power Brake Booster is an OE-quality component engineered and tested by GM to optimize brake force and restore peak braking performance. Designed specifically for GM vehicles, it ensures reliable, durable stopping power with the latest materials and technology updates, making it a trusted upgrade for professional-grade vehicle maintenance.

Specifications

ASIN	B08SML5Y7P
Best Sellers Rank	#990,807 in Automotive ( See Top 100 in Automotive ) #616 in Automotive Replacement Power Brake Systems
Brand	GM GENUINE PARTS
Customer Reviews	3.5 3.5 out of 5 stars (9)
Date First Available	July 17, 2020
Exterior	Machined
Item Weight	9.91 pounds
Item model number	178-0911
Manufacturer	ACDelco
Manufacturer Part Number	84602473
Model	GM Original Equipment
OEM Part Number	84602473
Position	Front
Product Dimensions	19 x 12.75 x 12.62 inches

Reviews

D**X

2014 Chevy Silverado 1500

This fix the issue I was having with my brakes on my Chevy Silverado being hard to press. It seriously took like 30 minutes to replace this. (Easy fix)

21.05.2025

B**E

Poor quality

Studs were loose that hold on the brake master cylinder, floating around inside the brake booster and caused further complications

29.06.2025

A**R

Perfect fit working good

Right product installed easy

11.12.2024

R**S

I order the above item i was told it would fix my car and it didn't fix at all cost me money

I don't like it at all did not fix

30.01.2023

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