Product Details: Ensuring you are Ready for the Road Ahead™, the Webb 16.5" x 7" Outboard Mount Brake Drum has a durable and heavy-duty design that withstands more heat than other brake drums in its weight class. Industry tested and approved; this brake drum exhibits patented Cool Running Technology vents that manage heat 10% more than competitors. With great heat dissipation, this heavy duty break drum is designed, cast, and machined to all applicable industry standards. Regularly tested and improved, this brake drum replacement boasts maximum performance in conjunction with your chosen brake shoe. FleetPride is your First Click in Heavy Duty®.