Stoptech 128.34016L Disc Brake Rotor - Rear Left

Overview of StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.34016L is engineered for BMW models including the 524td, 528e, 533i, 535i, 535is, 635CSi, M5, and M6. Designed to provide reliable braking performance, this rotor features a solid, cross-drilled surface to enhance heat dissipation and maintain consistent stopping power.

• Cross-drilled solid disc brake rotor for improved cooling
• Coated hat finish to resist corrosion
• Nominal thickness of 10.000 mm with discard thickness at 8.400 mm
• Overall diameter of 284 mm (11.181 inches)
• Five lug holes with 15 mm diameter and 120 mm bolt circle diameter
• Center hole diameter of 75 mm (2.953 inches)
• Weight approximately 4.74 kg (10.43 lbs)
• Compatible with select BMW models including M5 and M6

Detailed Product Description

This StopTech Sport Cross-Drilled Disc Brake Rotor (part number 128.34016L) is a solid rotor designed specifically for various BMW vehicles such as the 524td, 528e, 533i, 535i, 535is, 635CSi, M5, and M6. The rotor features a cross-drilled surface that helps reduce heat buildup during braking, which can improve brake fade resistance and maintain consistent pedal feel. The coated hat finish provides additional protection against rust and corrosion, extending the rotor's service life. With a nominal thickness of 10.000 mm and a discard thickness of 8.400 mm, this rotor meets OEM specifications for durability and performance. The rotor's dimensions include an overall diameter of 284 mm and a center hole diameter of 75 mm, ensuring proper fitment on compatible BMW models. The five lug holes with a 15 mm diameter and 120 mm bolt circle diameter align with factory mounting requirements.

StopTech Sport Cross-Drilled Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to offer enhanced braking performance through improved heat dissipation and reduced brake fade. Cross-drilled rotors like the 128.34016L provide better airflow and cooling compared to standard rotors, making them suitable for spirited driving and daily use on BMW vehicles. The solid rotor design balances durability with performance, while the coated hat finish helps maintain rotor integrity over time.

Common Applications and Problem Solving

• Reduces brake fade during aggressive or repeated braking
• Improves heat dissipation to prevent rotor warping
• Resists corrosion with coated hat finish for longer service life
• Restores OEM braking performance on BMW 5 and 6 Series models
• Addresses uneven brake pad wear caused by overheating

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (8.400 mm) before installation
• Clean rotor surface to remove any protective coatings before mounting
• Verify bolt pattern and center hole dimensions for proper fitment on BMW models
• Torque lug nuts to manufacturer specifications to avoid rotor damage
• Inspect brake pads and calipers during installation for optimal performance

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes quality control inspections to ensure dimensional accuracy and surface integrity. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.