Zimmermann 400.3649.54 BLACK Z Slotted Coated High-Carbon Brake Disc Rotor

The Zimmermann 400.3649.54 is a BLACK Z performance brake disc engineered for Mercedes-Benz ML-Class, GL-Class, and R-Class vehicles. Part of Zimmermann's premium performance lineup, the BLACK Z series features a patented slotted disc design developed directly from motorsport and racing experience, delivering enhanced braking performance over standard OE rotors.

Key Features:

• BLACK Z Slotted Design: Patented slot pattern derived from racing technology promotes continuous removal of gases, water, and brake dust from the pad contact surface, reducing brake fade and improving response
• High-Carbon Cast Iron: High-carbon material composition improves resistance to wear and thermo-mechanical stress, delivering consistent, fade-resistant braking under demanding conditions
• Coat Z Anti-Corrosion Surface Treatment: Full-surface coating provides long-lasting protection against rust and corrosion, maintaining appearance and integrity even in wet or winter driving conditions
• Internally Vented Construction: Internal vane ventilation maximizes heat dissipation to keep operating temperatures in check during repeated or heavy braking
• 350mm Outer Diameter / 32mm Thickness: Precision-dimensioned to OE specifications with an 8/5 hole arrangement, 5x112mm bolt circle, and 67mm hub bore
• OE-Quality Fitment: Manufactured to meet or exceed original equipment standards — direct bolt-on replacement requiring no modifications
• ECE R90 Approved: Certified to meet European brake component safety standards

Sold as a single brake disc. For full axle replacement, two units are required. Zimmermann recommends replacing brake pads at the same time as rotors to ensure optimal braking performance and even pad wear.