ACDelco 18M391563 - CYLINDER ASMBRK MAS (B)
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ACDELCO part description
CYLINDER ASMBRK MAS (B)
Product Description
Brake Master Cylinder
Product Attributes
| Product Description | ACDelco Gold (Professional) Brake Master Cylinders are the high quality alternative to Original Equipment (OE) parts. These master cylinders use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Gold (Professional) Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Features & Benefits - Bullet 1 | Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality |
| Features & Benefits - Bullet 2 | Pressure tested to ensure safe and confident braking |
| Features & Benefits - Bullet 3 | Cast iron and aluminum specifications; no extra stress on the brake boosting mounting |
| Features & Benefits - Bullet 4 | Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit |
| Features & Benefits - Bullet 5 | Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear |
| Features & Benefits - Bullet 6 | Some ACDelco Gold parts may have formerly appeared as ACDelco Professional |
| Features & Benefits - Bullet 7 | Premium aftermarket replacement part |
| Features & Benefits - Bullet 8 | Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models |
| Signs of Wear & Troubleshooting - Section 1 - Header | Brake cylinder signs of wear include: |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 1 | Brake warning light is on. |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 2 | Fluid spots beneath the car, indicating there may be a leak within the cylinder. |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 3 | Difficulty stopping the vehicle. |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 4 | A low or sinking brake pedal. |
| Good Maintenance Practices - Section 1 - Header | The following inspections and maintenance procedures can help prevent potential brake problems: |
| Good Maintenance Practices - Section 1 - Bullet 1 | Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations. |
| Good Maintenance Practices - Section 1 - Bullet 2 | Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required. |
| Good Maintenance Practices - Section 1 - Bullet 3 | Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary). |
| Good Maintenance Practices - Section 1 - Bullet 4 | Check the thickness of your brake pads. |
| Good Maintenance Practices - Section 2 - Header | The following should be conducted by a qualified technician: |
| Good Maintenance Practices - Section 2 - Bullet 1 | Inspection of the brake hoses for brittleness or cracking. |
| Good Maintenance Practices - Section 2 - Bullet 2 | Inspection of brake lining and pads for wear or contamination by brake fluid or grease. |
| Good Maintenance Practices - Section 2 - Bullet 3 | Inspection of wheel bearings and grease seals. |
| Good Maintenance Practices - Section 2 - Bullet 4 | Parking brake adjustments (as needed). |
| FAQ - Question 1 | Do I have to replace all my brake parts when replacing my brake cylinder? |
| FAQ - Answer 1 | No, but it is a good idea to inspect them for wear-out, cracking, leaking etc. |
| FAQ - Question 2 | Does ACDelco offer other grades of brake cylinders? |
| FAQ - Answer 2 | Yes, ACDelco also offers GM OE brake cylinders. |
| FAQ - Question 3 | Are these brake parts durable? |
| FAQ - Answer 3 | Yes, ACDelco Professional Brake Cylinders come with a 12 month / unlimited mile warranty. |
Additional Information
| Warranty Special | 24 Months/Unlimited Miles Limited Warranty (Parts Only). Please see ACDelco.com for more details|24 Months/40,000 Kilometers Limited Warranty (Parts Only). Please see ACDelcocanada.com for more details |
| Harmonized Tariff Code (HTS) | 8413919060 |
| Country of Origin (Primary) | CN |
| Warranty Special UOM | TX |
| UPC | 00195491293915 |
A true OEM auto parts brand for GM and non-GM vehicles, ACDelco® offers a wide portfolio of parts designed to keep vehicles on the road longer. These parts work precisely and fit perfectly because they are designed, engineered, tested, and backed by General Motors. But ACDelco also carries aftermarket components that go through the same 18-step quality approval process as the OE parts. Whether customers choose OE or aftermarket, they’d get the same reliable performance, precise engineering, and superior reliability for years to come. ACDelco’s expansive product portfolio includes alternators, filters, batteries, brakes, belts and hoses, oil and fluids, and suspension parts. These products are made to meet GM and non-GM vehicles’ ever-evolving powertrain, collision, maintenance, and repair needs.
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