Stoptech 128.35087L Disc Brake Rotor - Rear Left

StopTech Rear Left Sport Rotor for SL500

StopTech Sport Cross-Drilled Disc Brake Rotor 128.35087L is a direct replacement brake disc for factory brake systems and stock calipers. It is built for the rear left position on select Mercedes-Benz SL500 models and adds cross-drilled performance with a corrosion-resistant coated finish.

For Mercedes-Benz SL500 brake repair and upgrade searches, this rotor combines OE-style fitment with a performance-focused surface design. The StopTech Sport Cross-Drilled Disc Brake Rotors line is aimed at drivers who want improved heat management, cleaner pad contact, and a more finished look behind the wheel.

Key Features

• Fits 2005-2006 Mercedes-Benz SL500, rear left
• Fits 2003-2004 Mercedes-Benz SL500, rear left
• Part number 128.35087L
• Cross-drilled surface helps disperse heat and brake dust
• Helps reduce pad glazing and improve initial bite
• Black e-coating helps protect against corrosion
• High-carbon metallurgy in most applications supports quieter operation and improved crack resistance
• 1-piece direct replacement design for factory brake systems and stock calipers
• Outside diameter: 300.2 mm; nominal thickness: 10.0 mm; discard thickness: 8.3 mm
• 5-lug rotor with 112.2 mm bolt circle and 67.0 mm center hole

Detailed Description

StopTech 128.35087L is a rear left disc brake rotor engineered for Mercedes-Benz SL500 applications from 2003-2006. The X-drilled surface promotes heat and dust dispersal while maintaining a direct replacement fit for stock braking hardware. The coated hat and black e-coating add corrosion protection, making this rotor a practical choice for drivers replacing a worn rear rotor on a Mercedes-Benz SL500.

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on consistent braking feel, improved wet and dry response, and a cleaner appearance behind open wheels. This rotor measures 11.819 inches in outside diameter, 2.303 inches in overall height, and uses a solid rotor design with floating disc mounting.

What This Rotor Helps Address

• Brake pulsation caused by a worn or uneven rear rotor
• Reduced braking response from heat-soaked factory discs
• Pad glazing from repeated stop-and-go or spirited driving
• Corrosion on exposed rotor surfaces and hat areas
• Dust buildup and heat retention in the rear braking system

Installation Notes and Tips

Install this rotor on the rear left position only for the listed Mercedes-Benz SL500 applications. Confirm rotor dimensions, bolt pattern, and center bore before installation, and inspect pads, caliper condition, and hub surfaces at the same time. This part number is 128.35087L, so verify left-side rear fitment before ordering.

Compatible With 2003-2006 Mercedes-Benz SL500 rear brake service, this rotor is a direct replacement for factory brake systems and stock calipers. If you are replacing both rear rotors, match the opposite side to the correct application for balanced braking performance.

Quality Assurance

StopTech manufactures this rotor with a coated finish and high-carbon metallurgy used in most applications to support corrosion resistance, quieter operation, and improved crack resistance. Part number 128.35087L is built as a direct replacement brake disc for the specified Mercedes-Benz SL500 fitments.