Centric 123.66015 Brake Drum - Rear

Overview of Centric C-TEK Standard Brake Drum 123.66015

The Centric C-TEK Standard Brake Drum 123.66015 is engineered for reliable braking performance on Chevrolet and GMC trucks and SUVs. Designed to meet OEM specifications, this brake drum supports a range of models including the Chevrolet C20, Suburban, and GMC K2500 series.

• Nominal drum diameter: 13.000 inches (330.2 mm)
• Outside diameter: 15.470 inches (392.938 mm)
• Maximum brake diameter (discard): 13.090 inches (332.5 mm)
• Friction surface width: 3.320 inches (84.328 mm)
• Eight bolt holes with 6.5-inch (165.1 mm) bolt circle diameter
• Floating mounting type with 0.630 inch (16 mm) mounting hole diameter
• Equipped with outer cooling fins for heat dissipation
• Weight: approximately 45.9 lbs (20.864 kgs)

Detailed Product Description

This Centric brake drum, part number 123.66015, is designed specifically for heavy-duty Chevrolet and GMC vehicles such as the C1500 Suburban, K3500, and Express 2500. The drum features a nominal diameter of 13 inches and an outside diameter of 15.47 inches, providing a robust friction surface width of 3.32 inches to ensure consistent braking. The inclusion of outer cooling fins helps dissipate heat during braking, reducing the risk of brake fade under demanding conditions. The floating mounting type and precise bolt hole configuration (eight holes on a 6.5-inch bolt circle) ensure secure installation and compatibility with the specified vehicle models.

About the C-TEK Standard Brake Drums Line

The C-TEK Standard Brake Drums line by Centric is designed to offer dependable, OEM-quality replacement drums for a variety of trucks and SUVs. This product line focuses on maintaining factory specifications for fit, form, and function, making it suitable for routine maintenance and brake system repairs. The 123.66015 brake drum exemplifies this approach by combining precise dimensions and features like cooling fins to support vehicle safety and performance.

Common Applications and Problem Solving

• Replacement for worn or scored brake drums on Chevrolet C20 and GMC K20 Suburban models
• Addressing brake noise and vibration caused by uneven drum surfaces
• Restoring proper brake diameter to prevent reduced braking efficiency
• Improving heat dissipation to reduce brake fade during heavy towing or hauling
• Ensuring secure mounting with correct bolt hole pattern and floating mount design

Installation Notes and Tips

• Verify compatibility with your specific Chevrolet or GMC model before installation
• Inspect brake shoes and hardware for wear and replace as necessary during drum installation
• Ensure mounting holes and bolt circle diameter align correctly for secure fitment
• Check drum surface for any machining or finishing defects prior to installation
• Follow manufacturer torque specifications for mounting bolts to avoid warping

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Brake Drums to meet or exceed OEM standards, ensuring reliable performance and durability. Each brake drum undergoes rigorous quality control inspections to verify dimensional accuracy and material integrity. While specific warranty details for part number 123.66015 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship.