ACDelco 18A1705A Front Disc Brake Rotor

The ACDelco 18A1705A is part of the ACDelco Silver line, offering high-quality, high-value brake components for GM vehicles and most other makes and models. This front disc brake rotor is engineered for reliable performance on Cadillac, Chevrolet, and GMC vehicles, crafted from durable cast iron and precision-machined to ensure consistent and smooth braking performance.

Key Features:

• Multi-alloy construction with application-specific vane configuration optimizes cooling and improves performance while reducing brake fade
• Non-directional ground finish and balanced design help dampen noise, vibration, and harshness (NVH)
• Smooth rotor surface minimizes thickness variation, helping to extend brake pad life and reduce uneven wear
• Rounded radius edges increase structural strength under high heat and load, ideal for daily driving demands
• Mill-balanced for proper rotor function with no extra weights needed
• Vented construction with 13-inch outside diameter and 6-bolt pattern

Technical Specifications:

• Nominal thickness: 1.181 inches (30.0mm)
• Discard thickness: 1.102 inches (28.0mm)
• Outside diameter: 13 inches (330.2mm)
• Bolt circle diameter: 5.5 inches (139.7mm)
• Center bore diameter: 3.1 inches (78.7mm)
• 6-bolt mounting pattern
• Non-coated finish

ACDelco Silver rotors deliver quality at an economical price point, manufactured with multiple alloys for optimum heat dissipation and performance. This rotor is designed as a direct-fit replacement for front brake applications on light-duty trucks and full-size SUVs.