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.

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

Help Track order

Account Cart

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

Help Track order

Account Cart

ACDelco 15974046 GM Original Equipment Power Brake Booster Gasket

Product ID: 402883764

Details

Brand
GM GENUINE
Shape
Round
UPC
808709033301
Manufacturer
ACDelco
Net Quantity
1.0 Count

⏳12-month/12,000-mile warranty

🛠️GM OE spec precision fit

🇺🇸Made in USA quality

$44.26

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Description

🚗 Upgrade your brake game with GM precision – because every stop counts!

MADE IN THE USA - Proudly manufactured domestically, supporting quality standards and local craftsmanship.
PRECISION GM OE FIT - Engineered to match original factory specs for seamless installation and optimal brake performance.
DURABILITY YOU CAN TRUST - Crafted with premium materials ensuring long-lasting reliability under demanding driving conditions.
PROVEN CUSTOMER SATISFACTION - Rated 4.7/5 by over 230 users who value perfect fit and dependable function.
WARRANTY BACKED PEACE OF MIND - Includes a 12-month or 12,000-mile warranty to keep your braking system protected.

The ACDelco 15974046 Power Brake Booster Gasket is a GM-recommended, original equipment replacement part designed for perfect fit, form, and function. Manufactured in the USA, it offers durability and reliability backed by a 12-month/12,000-mile warranty, ensuring your GM vehicle’s braking system performs at its best.

Specifications

ASIN	B00B4KQGIU
Brand	GM GENUINE PARTS
Brand Name	GM GENUINE PARTS
Customer Reviews	4.7 out of 5 stars 235 Reviews
Global Trade Identification Number	00808709033301
Item Shape	Round
Item Weight	5 g
Manufacturer	ACDelco
Model Number	15974046
Net Quantity	1.0 Count
Part Number	15974046
Shape	Round
UPC	808709033301
Unit Count	1.0 Count
Warranty Description	12 Months / 12,000 Miles (Parts Only)

Reviews

D**R

It what it is, does what it does....

Gaskets are simple things. OEM for brake booster on 2001 GMC Sierra pickup 4.8L.

24.08.2024

J**H

OEM

Fit perfectly 2008 tahoe

14.05.2026

D**N

Original GM product in original packaging.

This product is awesome! It is an original GM product that came in original packaging. It is exactly like the original part and fit great!

27.01.2026

P**X

ACDelco 15974046 GM Original Equipment Power Brake Booster Gasket

The gasket fit perfectly for the power brake booster. Too bad I had to return both shipments of the defective power boosters that were shipped with minimal paper wrapping in a cardboard box. The rattling in the box while shipping probably caused the damage of broken studs, one to the master cylinder and the second one damaged to one stud and the casing bent.

16.10.2019

M**L

Perfect Fit, Excellent Quality – Brakes Feel Like New!

I recently replaced the power brake booster gasket on my truck and this one was an exact match. It installed easily with no trimming or adjustments needed – dropped right into place. The material feels thick, durable, and high-quality, much better than the old brittle one that was leaking. After installation, the brake pedal feel is firm and responsive again, with no more vacuum leaks or hissing sounds. It made a noticeable improvement in braking performance and overall confidence behind the wheel. For the price, this is an outstanding value. I highly recommend this gasket to anyone doing brake booster maintenance. Saved me a trip to the dealership and works perfectly. Will definitely buy again if needed!

18.06.2026

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.