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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€ 503.14

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

FRONT POSITION FITMENT - Specifically crafted for front brake systems, ensuring optimal integration and safety.
BOOST YOUR BRAKING POWER - Amplifies force to the master cylinder, delivering enhanced stopping power when it counts.
OE QUALITY YOU CAN TRUST - Manufactured to original equipment standards, ensuring durability and reliability.
CUTTING EDGE MATERIALS TECH - Incorporates the latest GM updates in materials and design for superior longevity.
PRECISION ENGINEERED FOR GM VEHICLES - Designed and validated by GM engineers for seamless fit and peak performance.

The GM Genuine Parts 178-0911 Power Brake Booster is an OE-quality component engineered and rigorously tested by GM to enhance braking performance. Designed for front brake systems on Chevrolet, Buick, GMC, and Cadillac vehicles, it amplifies brake force for safer, more responsive stops. Built with advanced materials and backed by GM’s trusted standards, this booster ensures reliable, long-lasting brake power restoration.

Specifications

ASIN	B08SML5Y7P
Best Sellers Rank	#1,781,744 in Automotive ( See Top 100 in Automotive ) #1,217 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

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