ACDelco 18B537B Gold Rear Brake Drum

The ACDelco 18B537B Gold Rear Brake Drum is a premium aftermarket replacement brake drum engineered to restore confident stopping performance. Constructed to OE design standards, this rear drum brake delivers reliable, quiet operation right out of the box — no machining required.

Key Features:

• G3000 SAE Qualified Cast Iron Construction — provides structural integrity and maximum service life
• ISO/TS 16949 Quality System Tested — validated for balance to deliver consistent, reliable braking performance
• OE-Matched Design — chamfer angle, vane configuration, and plate thickness follow the original manufacturer's specifications for a precise fit on GM and non-GM vehicles
• Inspected for Balance — results in smooth brake operation and reduced noise
• NVH Tested — independently tested for Noise, Vibration, and Harshness (NVH) as well as durability and wear resistance
• Heat-Dispersing Vane Design — follows OE vane configuration to effectively manage heat buildup, helping to prolong brake shoe life and reduce noise and vibration
• No Machining Required — ready to install straight from the box
• Turned Brake Surface Finish — ensures proper contact with brake shoes from the first application

Specifications:

• Position: Rear
• Material: Cast Iron
• Brake Surface Finish: Turned
• Discard Thickness: 7.91 in (201 mm)
• Center Bore Diameter: 2.41 in (61.1 mm)
• Bolt Circle Diameter: 3.94 in (100 mm)
• Bolt Hole Quantity: 4
• ABS Tone Ring Included: No
• OEM Cross-Reference: 19171766

Backed by ACDelco's 24-Month/Unlimited Mile Limited Warranty, the 18B537B is part of the ACDelco Gold line — a trusted choice for professional-grade brake service on a wide range of vehicles.