Zimmermann 150345020 Coat Z Rear Brake Disc Rotor 320x20mm

The Zimmermann 150345020 is a high-quality rear disc brake rotor featuring the innovative Coat Z anti-corrosion protection. This vented rotor measures 320mm in diameter by 20mm in thickness with a 5x120 bolt pattern, designed as a direct OEM replacement for select BMW vehicles.

Coat Z Anti-Corrosion Technology:

• Proprietary coating prevents rust formation at the hub and within cooling vanes
• Ready to install directly out of the box without coating removal
• Maintains superior visual appearance throughout the rotor's service life
• Provides enhanced longevity compared to uncoated rotors

Premium Construction Features:

• Manufactured from high-grade grey cast iron with flake graphite composition
• Engineered with vehicle-specific compound formulations including copper, molybdenum, titanium, and carbon materials
• Internally vented design for improved heat dissipation and thermal management
• Precision machined to exact OEM specifications for perfect fitment
• Thermo-mechanical properties matched to original equipment standards

Quality Assurance:

• Made in Germany to ISO 9001:2008 and ISO TS 16949 quality standards
• Meets or exceeds original equipment performance specifications
• Sold individually - two rotors required per vehicle

Zimmermann has been a trusted name in braking technology since introducing Coat Z protection in 2008. This rotor provides reliable stopping power, excellent wear resistance, and superior thermal performance for demanding driving conditions. Cross-references to BMW OEM part numbers 34216793247, 34216771970, 34216868940, and 34216886479.