Stoptech 127.66003R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.66003R) are engineered for reliable braking performance on heavy-duty trucks. Designed specifically for Chevrolet, Dodge, and GMC models including the K30, K3500, V30, V3500, W250, and W350, these rotors provide consistent stopping power under demanding conditions.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• Vented rotor design to reduce brake fade during extended use
• Coated hat finish to resist corrosion and extend rotor life
• Eight mounting bolt holes for secure fitment behind the hub
• Compatible with heavy-duty trucks from Chevrolet, Dodge, and GMC

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on 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, improving pad bite and reducing the risk of brake fade. This rotor line is vented with straight vanes to maintain optimal operating temperatures, making it suitable for demanding applications such as heavy-duty trucks like the Chevrolet K3500 and Dodge W350.

Technical Specifications and Features

These rotors feature a nominal thickness of 1.535 inches (38.99 mm) and a discard thickness of 1.465 inches (37.21 mm), ensuring a long service life before replacement is necessary. The overall height measures 3.079 inches (78.2 mm), with an outside diameter of 12.87 inches (326.9 mm). The rotor includes eight mounting bolt holes with a bolt circle diameter of 6.5 inches (165.1 mm) and a mounting bolt hole diameter of 0.697 inches (17.7 mm). The center hole diameter is 5.008 inches (127.2 mm), designed for mounting behind the hub. The rotor weighs approximately 28.5 lbs (12.95 kgs), balancing durability and performance.

Common Applications and Problem Solving

• Improves braking performance on heavy-duty Chevrolet K30 and GMC V3500 trucks
• Reduces brake fade during towing or heavy load conditions
• Minimizes rotor warping caused by excessive heat buildup
• Helps maintain consistent brake pad contact by removing debris and gases
• Prevents corrosion with coated hat finish for extended rotor life

Installation Notes and Tips

These rotors are designed for direct replacement on compatible Chevrolet, Dodge, and GMC heavy-duty trucks. Ensure the mounting surface and hub are clean and free of debris before installation. Use the correct torque specifications for the eight mounting bolts to secure the rotor behind the hub. It is recommended to inspect brake pads and hardware during installation and replace if necessary to maintain optimal braking performance.

Quality Assurance and Warranty

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The vented design and coated finish contribute to durability and consistent performance. 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.