Stoptech 127.34037R Disc Brake Rotor - Rear Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.34037R) is engineered for BMW M3 and Z3 models requiring reliable braking performance. Designed with vented construction and a coated hat finish, this rotor balances durability and heat dissipation for consistent stopping power.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• Vented rotor design with curved vanes to enhance airflow and reduce brake fade
• Coated hat finish to resist corrosion and extend rotor life
• Compatible with BMW M3 and Z3 models
• Disc mounting type: Floating / Dih
• Overall diameter: 312 mm (12.283 inches)
• Nominal thickness: 19.990 mm (0.787 inches)
• Stud/Lug hole quantity: 5 with 14.7 mm diameter

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor features a vented design with curved vanes that promote efficient heat dissipation during braking. The cross-drilled and slotted surface helps to evacuate gases, dust, and water, maintaining consistent brake pad contact and reducing the risk of brake fade. The coated hat finish protects the rotor from corrosion, ensuring long-term durability. With an overall height of 61.2 mm (2.409 inches) and a mounting bolt hole circle diameter of 120 mm (4.724 inches), this rotor is engineered to precise specifications for BMW M3 and Z3 vehicles. The rotor does not include ABS tone rings or bearings, and it mounts using a floating/dih disc mounting system.

About the StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance for sport and performance vehicles. These rotors combine cross-drilled holes and precision slots to improve cooling and pad bite, making them suitable for spirited driving and track use. The vented rotor design with curved vanes further aids in heat management, reducing the risk of brake fade under demanding conditions. This product line is engineered to meet the exact fitment and performance needs of vehicles like the BMW M3 and Z3.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or track use
• Improves brake pad cleaning to maintain consistent friction
• Enhances heat dissipation to prevent rotor warping
• Resists corrosion with coated hat finish for longer service life
• Provides precise fitment for BMW M3 and Z3 brake systems

Installation Notes and Tips

• Ensure compatibility with BMW M3 and Z3 models before installation
• Check rotor thickness and discard thickness limits during replacement
• Use proper torque specifications for the 5 lug/stud holes (14.7 mm diameter)
• Inspect brake pads and calipers for wear when installing new rotors
• Follow manufacturer guidelines for bedding in new rotors and pads

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The coated hat finish provides corrosion resistance, and the vented rotor design supports consistent braking under demanding conditions. Warranty information should be confirmed with the original product documentation or authorized StopTech distributors.