The primary difference between a Wichita KKB (Kopper Kool Brake/Clutch) and a wcbAM (AquaMaKKs Water Cooled Brake) is that the wcbAM is a lighter, modernized, and more corrosion-resistant iteration of the traditional KKB series. While both utilize water cooling for high-heat tensioning applications, the wcbAM (often referred to as AquaMaKKs) features significant design improvements, including lightweight composite water jackets and an aluminum actuator head, making it ideal for marine or weight-restricted applications