Need expert help? Reach out to us via live chat MON-SAT, 9AM to 5PM ET, for support. Our specialists are ready to assist you!

Select vehicle to confirm fitment

Brake Master Cylinder

Name: Brake Master Cylinder
Brand: ACDelco
Availability: InStock

PART#: 18M794

ACDelco

Add to My Projects

+ 0 More

$116.59

Select vehicle to confirm fitment

In stock

Need help? Talk to us, or chat with an expert!

Add to My Projects

Fitments

Year	Make	Model	Submodel	Engine	Fuel Type	Position	Note
2002	Chevrolet	Express 1500	Base	4.3V6	GAS	N/A
2002	Chevrolet	Express 1500	LT	5.7V8	GAS	N/A
2002	Chevrolet	Express 1500	Base	5.7V8	GAS	N/A
2002	Chevrolet	Express 1500	LS	5.7V8	GAS	N/A
2002	Chevrolet	Express 1500	LS	5.0V8	GAS	N/A
2002	Chevrolet	Express 1500	LS	4.3V6	GAS	N/A
2002	Chevrolet	Express 1500	LT	5.0V8	GAS	N/A
2002	Chevrolet	Express 1500	Base	5.0V8	GAS	N/A
2002	Chevrolet	Express 1500	LT	4.3V6	GAS	N/A
2002	Chevrolet	Express 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	LS	5.7V8	BI-FUEL	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	LS	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	LS	5.7V8	GAS	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	LS	5.0V8	GAS	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	LS	4.3V6	GAS	N/A	w/ Vacuum Booster
2002	Chevrolet	Express 2500	Base	5.7V8	BI-FUEL	N/A	w/ Vacuum Booster
2002	GMC	Savana 1500	Base	5.7V8	GAS	N/A
2002	GMC	Savana 1500	SLT	4.3V6	GAS	N/A
2002	GMC	Savana 1500	Base	5.0V8	GAS	N/A
2002	GMC	Savana 1500	Base	4.3V6	GAS	N/A
2002	GMC	Savana 1500	SLT	5.7V8	GAS	N/A
2002	GMC	Savana 1500	SLT	5.0V8	GAS	N/A
2002	GMC	Savana 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	SLT	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	SLT	5.7V8	BI-FUEL	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	SLT	4.3V6	GAS	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	SLT	5.7V8	GAS	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	Base	5.7V8	BI-FUEL	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	SLT	5.0V8	GAS	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
2002	GMC	Savana 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 1500	Base	5.7V8	GAS	N/A
2001	Chevrolet	Express 1500	Base	5.0V8	GAS	N/A
2001	Chevrolet	Express 1500	LT	5.7V8	GAS	N/A
2001	Chevrolet	Express 1500	Base	4.3V6	GAS	N/A
2001	Chevrolet	Express 1500	LS	4.3V6	GAS	N/A
2001	Chevrolet	Express 1500	LT	5.0V8	GAS	N/A
2001	Chevrolet	Express 1500	LS	5.7V8	GAS	N/A
2001	Chevrolet	Express 1500	LT	4.3V6	GAS	N/A
2001	Chevrolet	Express 1500	LS	5.0V8	GAS	N/A
2001	Chevrolet	Express 2500	Base	5.7V8	CNG	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	LS	5.7V8	GAS	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	LS	5.7V8	CNG	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	LS	5.0V8	GAS	N/A	w/ Vacuum Booster
2001	Chevrolet	Express 2500	LS	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2001	GMC	Savana 1500	Base	4.3V6	GAS	N/A
2001	GMC	Savana 1500	SLT	4.3V6	GAS	N/A
2001	GMC	Savana 1500	SLT	5.7V8	GAS	N/A
2001	GMC	Savana 1500	Base	5.0V8	GAS	N/A
2001	GMC	Savana 1500	Base	5.7V8	GAS	N/A
2001	GMC	Savana 1500	SLT	5.0V8	GAS	N/A
2001	GMC	Savana 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2001	GMC	Savana 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
2001	GMC	Savana 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
2001	GMC	Savana 2500	Base	5.7V8	BI-FUEL	N/A	w/ Vacuum Booster
2001	GMC	Savana 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
2000	Chevrolet	Express 1500	LS	4.3V6	GAS	N/A
2000	Chevrolet	Express 1500	Base	5.0V8	GAS	N/A
2000	Chevrolet	Express 1500	LS	5.7V8	GAS	N/A
2000	Chevrolet	Express 1500	Base	5.7V8	GAS	N/A
2000	Chevrolet	Express 1500	Base	4.3V6	GAS	N/A
2000	Chevrolet	Express 1500	LS	5.0V8	GAS	N/A
2000	Chevrolet	Express 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
2000	Chevrolet	Express 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
2000	Chevrolet	Express 2500	LS	5.0V8	GAS	N/A	w/ Vacuum Booster
2000	Chevrolet	Express 2500	LS	5.7V8	GAS	N/A	w/ Vacuum Booster
2000	Chevrolet	Express 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
2000	Chevrolet	Express 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2000	Chevrolet	Express 2500	LS	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2000	GMC	Savana 1500	Base	4.3V6	GAS	N/A
2000	GMC	Savana 1500	SLE	5.7V8	GAS	N/A
2000	GMC	Savana 1500	Base	5.7V8	GAS	N/A
2000	GMC	Savana 1500	SLE	5.0V8	GAS	N/A
2000	GMC	Savana 1500	Base	5.0V8	GAS	N/A
2000	GMC	Savana 1500	SLE	4.3V6	GAS	N/A
2000	GMC	Savana 2500	SLE	5.7V8	GAS	N/A	w/ Vacuum Booster
2000	GMC	Savana 2500	SLE	6.5V8	DIESEL	N/A	w/ Vacuum Booster
2000	GMC	Savana 2500	SLE	5.0V8	GAS	N/A	w/ Vacuum Booster
2000	GMC	Savana 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
2000	GMC	Savana 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
2000	GMC	Savana 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
2000	GMC	Savana 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1999	Chevrolet	Express 1500	Base	5.7V8	GAS	N/A
1999	Chevrolet	Express 1500	Base	5.0V8	GAS	N/A
1999	Chevrolet	Express 1500	LS	5.7V8	GAS	N/A
1999	Chevrolet	Express 1500	Base	4.3V6	GAS	N/A
1999	Chevrolet	Express 1500	LS	5.0V8	GAS	N/A
1999	Chevrolet	Express 1500	LS	4.3V6	GAS	N/A
1999	Chevrolet	Express 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1999	Chevrolet	Express 2500	LS	5.0V8	GAS	N/A	w/ Vacuum Booster
1999	Chevrolet	Express 2500	LS	5.7V8	GAS	N/A	w/ Vacuum Booster
1999	Chevrolet	Express 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1999	Chevrolet	Express 2500	LS	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1999	Chevrolet	Express 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1999	Chevrolet	Express 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1999	GMC	Savana 1500	Base	5.0V8	GAS	N/A
1999	GMC	Savana 1500	Base	5.7V8	GAS	N/A
1999	GMC	Savana 1500	Base	4.3V6	GAS	N/A
1999	GMC	Savana 1500	SLE	4.3V6	GAS	N/A
1999	GMC	Savana 1500	SLE	5.7V8	GAS	N/A
1999	GMC	Savana 1500	SLE	5.0V8	GAS	N/A
1999	GMC	Savana 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1999	GMC	Savana 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1999	GMC	Savana 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1999	GMC	Savana 2500	SLE	5.7V8	GAS	N/A	w/ Vacuum Booster
1999	GMC	Savana 2500	SLE	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1999	GMC	Savana 2500	SLE	5.0V8	GAS	N/A	w/ Vacuum Booster
1999	GMC	Savana 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1998	Chevrolet	Express 1500	LS	4.3V6	GAS	N/A
1998	Chevrolet	Express 1500	Base	4.3V6	GAS	N/A
1998	Chevrolet	Express 1500	LS	5.7V8	GAS	N/A
1998	Chevrolet	Express 1500	Base	5.0V8	GAS	N/A
1998	Chevrolet	Express 1500	Base	5.7V8	GAS	N/A
1998	Chevrolet	Express 1500	LS	5.0V8	GAS	N/A
1998	Chevrolet	Express 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1998	Chevrolet	Express 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1998	Chevrolet	Express 2500	LS	5.0V8	GAS	N/A	w/ Vacuum Booster
1998	Chevrolet	Express 2500	LS	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1998	Chevrolet	Express 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1998	Chevrolet	Express 2500	LS	5.7V8	GAS	N/A	w/ Vacuum Booster
1998	Chevrolet	Express 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1998	GMC	Savana 1500	Base	5.0V8	GAS	N/A
1998	GMC	Savana 1500	SLE	4.3V6	GAS	N/A
1998	GMC	Savana 1500	SLE	5.0V8	GAS	N/A
1998	GMC	Savana 1500	Base	5.7V8	GAS	N/A
1998	GMC	Savana 1500	Base	4.3V6	GAS	N/A
1998	GMC	Savana 1500	SLE	5.7V8	GAS	N/A
1998	GMC	Savana 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1998	GMC	Savana 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1998	GMC	Savana 2500	SLE	5.0V8	GAS	N/A	w/ Vacuum Booster
1998	GMC	Savana 2500	SLE	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1998	GMC	Savana 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1998	GMC	Savana 2500	SLE	5.7V8	GAS	N/A	w/ Vacuum Booster
1998	GMC	Savana 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1997	Chevrolet	Express 1500	Base	5.0V8	GAS	N/A
1997	Chevrolet	Express 1500	LS	5.0V8	GAS	N/A
1997	Chevrolet	Express 1500	Base	5.7V8	GAS	N/A
1997	Chevrolet	Express 1500	LS	5.7V8	GAS	N/A
1997	Chevrolet	Express 1500	Base	4.3V6	GAS	N/A
1997	Chevrolet	Express 1500	LS	4.3V6	GAS	N/A
1997	Chevrolet	Express 2500	LS	5.7V8	GAS	N/A	w/ Vacuum Booster
1997	Chevrolet	Express 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1997	Chevrolet	Express 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1997	Chevrolet	Express 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1997	Chevrolet	Express 2500	LS	5.0V8	GAS	N/A	w/ Vacuum Booster
1997	Chevrolet	Express 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1997	Chevrolet	Express 2500	LS	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1997	GMC	Savana 1500	SLE	5.0V8	GAS	N/A
1997	GMC	Savana 1500	Base	4.3V6	GAS	N/A
1997	GMC	Savana 1500	Base	5.0V8	GAS	N/A
1997	GMC	Savana 1500	Base	5.7V8	GAS	N/A
1997	GMC	Savana 1500	SLE	4.3V6	GAS	N/A
1997	GMC	Savana 1500	SLE	5.7V8	GAS	N/A
1997	GMC	Savana 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1997	GMC	Savana 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1997	GMC	Savana 2500	SLE	5.0V8	GAS	N/A	w/ Vacuum Booster
1997	GMC	Savana 2500	SLE	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1997	GMC	Savana 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1997	GMC	Savana 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1997	GMC	Savana 2500	SLE	5.7V8	GAS	N/A	w/ Vacuum Booster
1996	Chevrolet	Express 1500	Base	5.7V8	GAS	N/A
1996	Chevrolet	Express 1500	LS	5.0V8	GAS	N/A
1996	Chevrolet	Express 1500	Base	5.0V8	GAS	N/A
1996	Chevrolet	Express 1500	LS	5.7V8	GAS	N/A
1996	Chevrolet	Express 1500	LS	4.3V6	GAS	N/A
1996	Chevrolet	Express 1500	Base	4.3V6	GAS	N/A
1996	Chevrolet	Express 2500	LS	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1996	Chevrolet	Express 2500	LS	5.7V8	GAS	N/A	w/ Vacuum Booster
1996	Chevrolet	Express 2500	LS	5.0V8	GAS	N/A	w/ Vacuum Booster
1996	Chevrolet	Express 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1996	Chevrolet	Express 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1996	Chevrolet	Express 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1996	GMC	Savana 1500	Base	5.7V8	GAS	N/A
1996	GMC	Savana 1500	SLE	4.3V6	GAS	N/A
1996	GMC	Savana 1500	SLE	5.7V8	GAS	N/A
1996	GMC	Savana 1500	SLE	5.0V8	GAS	N/A
1996	GMC	Savana 1500	Base	5.0V8	GAS	N/A
1996	GMC	Savana 1500	Base	4.3V6	GAS	N/A
1996	GMC	Savana 2500	Base	4.3V6	GAS	N/A	w/ Vacuum Booster
1996	GMC	Savana 2500	SLE	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1996	GMC	Savana 2500	Base	5.7V8	GAS	N/A	w/ Vacuum Booster
1996	GMC	Savana 2500	Base	6.5V8	DIESEL	N/A	w/ Vacuum Booster
1996	GMC	Savana 2500	Base	5.0V8	GAS	N/A	w/ Vacuum Booster
1996	GMC	Savana 2500	SLE	5.7V8	GAS	N/A	w/ Vacuum Booster
1996	GMC	Savana 2500	SLE	5.0V8	GAS	N/A	w/ Vacuum Booster

Product info

The ACDelco Brake Master Cylinder part number 18M794 is a perfect fit for Chevrolet and GMC vehicles. This high-quality product is designed to improve the safety and performance of your braking system.

One of the key benefits of this brake master cylinder is its durability. Made from premium materials, it has been rigorously tested to ensure it can withstand the demands of everyday driving. With the 18M794, you can be sure that your vehicle’s braking system will remain reliable for a long time.

Another notable feature of the ACDelco Brake Master Cylinder is its excellent brake fluid compatibility. It is engineered to work perfectly with all types of brake fluids, ensuring smooth and consistent braking performance.

This brake master cylinder is easy to install and comes with all the necessary hardware to get the job done quickly. It is also designed to fit perfectly with your vehicle’s original brake system, eliminating the need for any modification.

The ACDelco Brake Master Cylinder part number 18M794 is an ideal replacement for your Chevrolet or GMC vehicle. It offers reliable performance, durability and compatibility with different types of brake fluid. Ensure top-notch braking performance with this high-quality brake master cylinder.

About ACDelco

When it comes to top-notch auto parts, one brand that stands tall is ACDelco. Popular for its commitment to quality and innovation, ACDelco has been a trusted name in the automotive industry. At Newparts.com, we're proud to offer a wide selection of ACDelco auto parts, including ACDelco spark plugs, ACDelco alternators, and ACDelco air filters, and other ACDelco parts, all at discounted prices.

ACDelco spark plugs are engineered to deliver exceptional performance and reliability, ensuring optimal engine operation and fuel efficiency. Whether you're cruising down the highway or navigating city streets, you can trust ACDelco spark plugs to keep your engine firing on all cylinders.

When it comes to power generation, ACDelco alternators are second to none. Designed to withstand the challenges of daily driving, ACDelco alternators deliver consistent power output to keep your vehicle's electrical systems running smoothly. With ACDelco alternators from Newparts.com, you can count on reliable performance mile after mile.

In addition to spark plugs and alternators, we also offer a range of ACDelco air filters to help keep your engine breathing clean, fresh air. ACDelco air filters are designed to trap dirt, dust, and other contaminants, preventing them from entering your engine and causing damage. With a high-quality ACDelco air filter from Newparts.com, you can enjoy improved engine performance and extended engine life.

At Newparts.com, we understand that getting the right parts quickly is essential. That's why we offer fast shipping on all ACDelco auto parts, so you can get back on the road with confidence. Plus, with our discounted prices, you can save big on the parts you need to keep your vehicle running smoothly. In case you want to purchase parts by phone, feel free to call us at 855-505-2886 and our customer service team will help you out.

Whether you're in need of spark plugs, alternators, air filters, or any other ACDelco auto parts, Newparts.com has you covered. Shop our selection today and experience the quality and reliability of ACDelco for yourself.

Specifications

New
Bleeder Hoses Included	Yes
Brake Booster Included	No
Master Cylinder Bore Diameter	1.125
Master Cylinder Cap Included	Yes
Master Cylinder Material	Aluminum
Mounting Bracket Included	No
Mounting Hole Quantity	2
Port Quantity	2
Primary Outlet Thread Diameter	0.5625
Pushrod Included	No
Reservoir Included	Yes
Secondary Outlet Thread Diameter	0.5

Warranty

We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!

Delivery & Returns

Delivery Info

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

Brake Master Cylinder

Delivery Info

Returns Info

FREE SHIPPING