The ABP N42A1658625B is a robust and reliable 16.5x8.625 balance brake drum designed for heavy-duty applications. It features ten bolt holes for secure attachment and has a GAWR (Gross Axle Weight Rating) of 26,000 lbs., making it suitable for handling substantial loads. With a width of 8.63 inches, this brake drum provides ample surface area for brake shoes to engage, ensuring effective braking performance. The bolt circle diameter is 11.25 inches and the drum itself has a diameter of 16.50 inches. It offers a pad contact surface width of 9.08 inches, further contributing to its braking efficiency. The brake pilot diameter is 8.78 inches and the brake surface diameter matches the drum's size at 16.50 inches. With a sturdy construction and a mounting flange thickness of 0.62 inches, this brake drum is built to withstand heavy braking loads and provide long-lasting performance.
The ABP N42A1658625B is a robust and reliable 16.5x8.625 balance brake drum designed for heavy-duty applications. It features ten bolt holes for secure attachment and has a GAWR (Gross Axle Weight Rating) of 26,000 lbs., making it suitable for handling substantial loads. With a width of 8.63 inches, this brake drum provides ample surface area for brake shoes to engage, ensuring effective braking performance. The bolt circle diameter is 11.25 inches and the drum itself has a diameter of 16.50 inches. It offers a pad contact surface width of 9.08 inches, further contributing to its braking efficiency. The brake pilot diameter is 8.78 inches and the brake surface diameter matches the drum's size at 16.50 inches. With a sturdy construction and a mounting flange thickness of 0.62 inches, this brake drum is built to withstand heavy braking loads and provide long-lasting performance.
When you’re behind the wheel of a fully loaded semi-truck weighing up to 80,000 pounds, there’s one thing you absolutely can’t afford to second-guess: your brakes. A dependable braking system is the difference between a safe stop and a catastrophic accident. In the heavy-duty trucking industry, air brakes are the gold standard — a proven technology that delivers consistent stopping power, built-in safety features, and the durability to withstand thousands of miles in the most punishing conditions.
But even the most robust air brake system isn’t “set it and forget it.” Every driver and fleet maintenance team needs to understand how these systems work, how to recognize trouble before it escalates, and when it’s time to replace key components.