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.

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€ 248.34

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Stop on a dime with confidence—ACDelco Gold, where precision meets power.

READY TO INSTALL - Bench bled and pre-assembled for hassle-free, out-of-the-box installation—get back on the road faster.
HEAT LEAK RESISTANT - Advanced EPDM and SBR rubber components resist heat, corrosion, and fluid leakage for long-lasting reliability.
OPTIMIZED BRAKE RESPONSE - Piston assembly and return spring minimize brake drag, extending brake pad life and enhancing safety.
PRECISION ENGINEERED FIT - Geometrical tolerance ensures perfect body and reservoir alignment for seamless installation.
DURABILITY MEETS PERFORMANCE - Cast iron and aluminum construction delivers strength without stressing brake booster mounts.

The ACDelco Gold 18M2455 Brake Master Cylinder Assembly combines durable cast iron and aluminum construction with heat- and corrosion-resistant EPDM/SBR rubber components. Pressure tested to meet SAE J1153 and J1154 standards, it ensures reliable braking performance and a perfect fit with precise geometrical tolerances. Pre-assembled and bench bled for easy installation, this master cylinder optimizes brake response while preventing premature pad wear.

Specifications

ASIN	B008BZSKQM
Best Sellers Rank	#1,459,057 in Automotive ( See Top 100 in Automotive ) #5,062 in Automotive Replacement Brake Hydraulic Parts
Brand	ACDelco
Customer Reviews	4.0 4.0 out of 5 stars (34)
Date First Available	June 12, 2012
Item Weight	5 pounds
Item model number	18M2455
Manufacturer	ACDelco
Manufacturer Part Number	19287783
Model	18M2455
OEM Part Number	19287783
Product Dimensions	11.3 x 7.7 x 5.6 inches

Reviews

S**E

Master Cylinder

It fit the 05 Titan perfectly. If your slip light is on try the master cylinder.

14.01.2023

A**N

Stops on a dime.

Fit and functions perfect. Item exactly as described. Comes with plastic screw-on caps. Doesn't come with bench bleed tube setup.

14.10.2015

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