Heavy-Duty Truck Front/Rear Brake Rotor DZ90009440033 Vented Cast Iron Brake Disc With Precision Drilled Mounting Flange

Heavy-Duty Truck Front/Rear Brake Rotor DZ90009440033 Vented Cast Iron Brake Disc With Precision Drilled Mounting Flange

Product Description

This brake disc with OEM part number DZ90009440033 is a core friction braking component for heavy-duty commercial trucks. It matches the vehicle wheel hub assembly and works together with brake pads to convert kinetic energy into heat energy via friction, realizing stable deceleration and parking. Adopting ventilated hollow internal structure design, it can rapidly discharge high heat generated during frequent braking, effectively avoiding brake fading, thermal deformation and cracking under heavy load downhill conditions. The central mounting flange with standardized positioning holes fully fits the original axle hub, enabling direct installation without secondary machining during vehicle maintenance.

Key Product Advantages

• High-grade grey cast iron raw material with special heat treatment, uniform hardness, strong wear resistance and outstanding anti-thermal crack performance under extreme high braking temperature.
• Internal ventilation channel structure greatly expands heat exchange area, quickly dissipates braking heat, maintains stable braking efficiency for continuous downhill driving.
• Precision CNC turning for both friction surfaces, flatness tolerance strictly controlled to eliminate brake shaking and steering jitter during high-speed braking.
• Evenly distributed precise mounting holes on the inner flange, consistent aperture and hole spacing with factory wheel hub, ensuring concentric installation and stable rotation.
• Anti-rust protective coating on non-friction surfaces to avoid oxidation and rust during storage and transportation.

Product Specification Table

Product Picture