Stoptech 128.65090L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.65090L is engineered for reliable braking performance on Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer models. Designed to meet precise fitment and durability standards, this rotor offers consistent stopping power for daily driving and light performance use.

• Compatible with Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer
• Part number 128.65090L for exact replacement
• Solid disc design with cross-drilled surface for heat dissipation
• Coated hat finish to resist corrosion
• Nominal thickness of 0.476 inches (12.1 mm) with discard thickness at 0.433 inches (11 mm)
• Outside diameter of 11.85 inches (301 mm) and overall height of 2.291 inches (58.2 mm)
• Five lug holes with 0.539 inch (13.7 mm) diameter and 4.5 inch (114.3 mm) bolt circle diameter

About StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat dissipation and reduced brake fade. The cross-drilled surface pattern helps to evacuate gases and water, maintaining consistent friction during braking. This rotor line features a solid disc construction with a coated hat finish to protect against rust and corrosion, making it suitable for both street and light sport applications. The 128.65090L rotor is a direct fit for select Ford and Mercury SUVs, ensuring proper alignment and mounting.

Technical Specifications and Features

This rotor features a solid disc type with a cross-drilled surface, measuring 11.85 inches (301 mm) in outside diameter and 2.291 inches (58.2 mm) in overall height. The nominal thickness is 0.476 inches (12.1 mm), with a discard thickness of 0.433 inches (11 mm), indicating when replacement is necessary. The rotor includes five lug holes sized at 0.539 inches (13.7 mm) diameter on a 4.5 inch (114.3 mm) bolt circle diameter. The center hole diameter is 3.228 inches (82 mm). The hat finish is coated to resist corrosion, and the rotor weighs approximately 14 lbs (6.36 kg). This rotor does not include ABS tone rings or bearings.

Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer
• Improves heat dissipation to reduce brake fade during extended braking
• Addresses rotor surface cracking and glazing issues with cross-drilled design
• Helps maintain consistent braking performance in wet conditions by evacuating water
• Prevents corrosion-related rotor damage with coated hat finish

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surface and hub to prevent runout and vibration
• Use proper torque specifications for lug nuts to avoid rotor warping
• Check compatibility with existing brake pads and calipers on Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer
• Inspect wheel bearings and replace if necessary, as bearings are not included

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet OEM specifications for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always verify warranty terms with the product supplier or manufacturer.