Stoptech 227.66009L Disc Brake Rotor - Front Left

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 227.66009L) are engineered for reliable braking performance on select Cadillac, Chevrolet, and GMC vehicles. Designed to meet the demands of models like the Escalade, Tahoe, Yukon, and K1500 series, these rotors provide consistent stopping power with enhanced heat dissipation.

• Cross-drilled and slotted surface for improved brake pad bite and heat management
• Vented rotor design with straight vane style for efficient cooling
• Nominal thickness of 1.287 inches (32.7 mm) and discard thickness of 1.215 inches (30.86 mm)
• Overall diameter of 11.606 inches (294.8 mm) suitable for heavy-duty applications
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with 6-lug wheel configurations with a 5.5-inch bolt circle diameter

Product Line Details: StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on delivering enhanced braking performance through advanced rotor surface technology. The combination of cross-drilled holes and precision slots helps to evacuate gases, dust, and water from the braking surface, reducing fade and maintaining consistent pedal feel. This product line is designed for drivers who require dependable stopping power and improved rotor cooling without modifying the vehicle’s original braking system.

Technical Specifications and Compatibility

This disc brake rotor features a vented design with straight vanes to optimize airflow and heat dissipation during braking. The rotor measures 11.606 inches (294.8 mm) in outside diameter and has an overall height of 2.622 inches (66.6 mm). It is designed for vehicles equipped with a 6-lug wheel pattern and a 5.5-inch mounting bolt circle diameter. The center hole diameter is 3.098 inches (78.7 mm), and the stud/lug hole diameter is 0.610 inches (15.5 mm). Weighing approximately 16 lbs (7.27 kg), this rotor balances durability and performance for SUVs and trucks.

Applications and Problem Solving

• Compatible with Cadillac Escalade, Chevrolet Blazer, Tahoe, K1500, K1500 Suburban, K2500, and GMC Yukon models
• Addresses brake fade caused by excessive heat buildup during towing or heavy braking
• Reduces brake dust accumulation and improves pad contact through slotted and drilled design
• Helps prevent rotor warping and cracking under high-stress driving conditions
• Improves wet weather braking performance by channeling water away from the rotor surface

Installation Notes and Tips

Ensure the rotor is installed on the correct side, as indicated by the part number 227.66009L (left side). Verify that the mounting surfaces and hub are clean and free of debris before installation. Use proper torque specifications for the 6-lug wheel bolts to avoid rotor distortion. Since this rotor does not include bearings or an ABS tone ring, reuse existing components or replace as necessary. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The vented and floating rotor design supports consistent braking performance and durability. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult the product packaging or manufacturer for exact warranty terms.