The USA truck brake drum 67518B is a heavy-duty brake component designed for use with 16.5 x 7-inch brake systems. Key specifications include:

Brake Shoe Width: 7 inches
Brake Surface Diameter: 16.5 inches
Overall Depth: 8.38 inches
Pilot Diameter: 9.44 inches
Bolt Circle Diameter: 11 inches
Number of Bolt Holes: 5 or 6 (depending on configuration)
Weight: Approximately 100 lbs
This drum is typically used in applications requiring reliable braking performance and durability, making it ideal for large trucks and trailers.