Zimmermann 400.3670.52 Disc Brake Rotor - Front

Sport Z Cross-Drilled Rotor

Zimmermann 400.3670.52 is a front disc brake rotor built for Mercedes-Benz applications that require a 375 mm, coated, perforated rotor with a high-carbon machining specification. The cross-drilled surface helps move water and brake dust away from the braking face, while the coated finish adds corrosion resistance.

• Perforated brake disc design for improved wet-weather braking performance.
• High-carbon construction for stable braking characteristics under heat.
• Coated surface for added corrosion protection and cleaner appearance.
• 375 mm outer diameter with 32 mm thickness and 29.4 mm minimum thickness.
• Fits Mercedes-Benz GL550, GL350, GL450, ML550, GL320, and R550 front applications.

Fitment Details

Fits 2008-2013 Mercedes-Benz GL550, front. Fits 2010-2012 Mercedes-Benz GL350, front, with heavy duty brake. Fits 2007-2012 Mercedes-Benz GL450, front. Fits 2008-2011 Mercedes-Benz ML550, front. Fits 2007-2009 Mercedes-Benz GL320, front, with heavy duty brake. Fits 2008 Mercedes-Benz R550, front.

This Zimmermann brake rotor is part of the Sport Z line, which combines a drilled braking surface with coated rotor protection. The part number 400.3670.52 is also referenced by several cross-market numbers for the same application, including Brembo 09.R105.11 and BBB Industries 17833.

Used For

• Replacing a worn or heat-checked front brake rotor.
• Restoring braking performance when rotor thickness is near minimum specification.
• Addressing vibration or pulsation caused by rotor wear or uneven surfaces.
• Improving water and brake dust evacuation from the braking face.

Installation Notes

Verify rotor diameter, hub bore, bolt pattern, and minimum thickness before installation. This rotor uses an 8/5 hole arrangement, a 112 mm bolt circle, and a 67 mm hub bore. Confirm the vehicle is equipped with the listed heavy duty brake configuration where noted.

Quality Assurance

Zimmermann developed the Sport Z rotor using racing experience and long-term brake rotor manufacturing know-how. The rotor is supplied with general ABE certification or ECE note information, and the coated finish is intended to resist corrosion.