ACDelco 18B603A - Rear Brake Drum
$4299
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ACDELCO part description
Product Description
Rear Brake Drum
Product Attributes
| Mount Hole Diameter (in) | 0.566in |
| Height (in) | 2.8 in |
| Center Bore Diameter (in) | 2.17in |
| Bolt Circle Diameter | 3.94 IN |
| Bolt Hole Quantity | 4 |
| Nominal Brake Drum Diameter (in) | 7.87in |
| Discard Thickness (in) | 7.93 in |
| Maximum Brake Diameter (Discard) | 7.93 IN |
| Weight | 8.9 lb |
| Depth | 1.587 IN |
| Length (In) | 10.8 IN |
| Width (in) | 10.8 in |
| Mount Hole Diameter (mm) | 14.376mm |
| Center Bore Diameter (mm) | 55mm |
| Bolt Circle Diameter | 100 MM |
| Nominal Brake Drum Diameter (mm) | 200.7mm |
| Discard Thickness (mm) | 201.5 mm |
| Maximum Brake Diameter (Discard) | 201.42 MM |
| Stud/Lug Hole Diameter | 13.85 MM |
| Depth | 40.3 MM |
| Product Description | ACDelco Advantage Brake Drums are constructed with G3000 material for maximum service life. They are validated for balance to provide better braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design. Also, no machining is required. ACDelco Advantage Brake Drums are ready to be installed right out of the box. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Signs of Wear & Troubleshooting - Section 1 - Header | Brake Drum signs of wear include: |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 5 | Brake pedal pulsation (not to be confused with normal ABS operation). |
| Good Maintenance Practices - Section 1 - Bullet 2 | Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required. |
| Material | Cast Iron |
| Good Maintenance Practices - Section 1 - Bullet 1 | Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations. |
| FAQ - Question 1 | Do I have to replace all my brake parts when replacing my brake drums? |
| FAQ - Question 3 | Do I have to replace my brake drums after a certain amount of time? |
| FAQ - Question 2 | Does ACDelco offer other grades of brake drums? |
| Features & Benefits - Bullet 2 | Drums are inspected for balance; resulting in smooth brake operation and noise reduction |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 3 | Increased stopping distances. |
| 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 2 - Bullet 2 | Inspection of brake lining and pads for wear or contamination by brake fluid or grease. |
| Good Maintenance Practices - Section 2 - Bullet 1 | Inspection of the brake hoses for brittleness or cracking. |
| Good Maintenance Practices - Section 2 - Bullet 3 | Inspection of wheel bearings and grease seals. |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 2 | Low brake pedal height. |
| Features & Benefits - Bullet 1 | Mill-balanced for proper rotor function, no extra weights are needed |
| Programming Required | No |
| Includes ABS Sensor Ring | No |
| Cooling Fins | No |
| FAQ - Answer 3 | No, but it is a good idea to inspect them at every tire rotation. |
| FAQ - Answer 1 | No, but it is a good idea to inspect them for wear-out, cracking, leaking, etc. |
| Features & Benefits - Bullet 4 | Non-directional brake surface finish for consistent braking |
| Good Maintenance Practices - Section 2 - Bullet 4 | Parking brake adjustments (as needed). |
| Features & Benefits - Bullet 3 | Quality validated for proper metallurgy and correct brake plate thickness |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 1 | Reduced braking force. |
| Grade Type | Regular |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 4 | Squealing or scraping noises. |
| Good Maintenance Practices - Section 1 - Header | The following inspections and maintenance procedures can help prevent potential brake problems: |
| Good Maintenance Practices - Section 2 - Header | The following should be conducted by a qualified technician: |
| Brake Surface Finish | Turned |
| FAQ - Answer 2 | Yes, ACDelco also offers GM OE and Professional brake drums. |
| Inside Diameter | 7.874 IN |
| Inside Diameter | 200 MM |
| Outside Diameter | 0.371 IN |
| Outside Diameter | 9.45 MM |
| Stud/Lug Hole Diameter | 0.546 IN |
| Stud/Lug Hole Quantity | 4 |
Additional Information
| Warranty Special | 12 Months/Unlimited Miles Limited Warranty (Parts Only). Please see ACDelco.com for more details|12 Months/20,000 Kilometers Limited Warranty (Parts Only). Please see ACDelcocanada.com for more details |
| Harmonized Tariff Code (HTS) | 8708305020 |
| Country of Origin (Primary) | CN |
| Warranty Special UOM | TX |
| UPC | 00707773966181 |
Fits Vehicles
- Mazda 2 (2011-2014)
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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