Ford Mustang Crankshaft Damper - ATI - 6.78In - AL - 6 Grv - 4 Ring (OEM / 31T 8mm HTD) - '11-'27. This ATI-built damper controls harmful crankshaft vibration and delivers consistent belt drive operation.

Built around a 6.78-inch diameter with an aluminum construction, the 6-groove, 4-ring layout is engineered for Mustang applications that utilize the OEM 31-tooth, 8 mm HTD interface. The design helps protect the crank and bearings, promotes clean belt tracking at elevated RPM, and offers reliable performance for enthusiast builds. Precision machining and balanced assembly support durability without unnecessary weight. Please verify pulley alignment and belt/drive compatibility for your specific setup before ordering.

Features

• 6.78-inch diameter damper
• Aluminum construction
• 6-groove accessory drive
• 4-ring configuration
• OEM / 31T 8 mm HTD interface

Have questions or need guidance on fitment? Call our team at 512-982-9393 (TX) or 562-981-6800 (CA). We operate in Austin, Texas and the Los Angeles, California area, where we offer professional installation and customization services.

Thinking about purchasing multiple items? Contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov