super fast shipping
ATI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ATI lineup with fast shipping and expert fitment support — order with confidence.
The ATI 7.425in Steel Harmonic Damper provides essential vibration protection for 2011 and newer Duramax LML and LGH engines. As these modern diesel engines are pushed to higher performance levels, the factory harmonic balancer often becomes a weak point. ATI has engineered this high-performance steel damper to effectively neutralize torsional vibrations, ensuring that your crankshaft and internal engine components remain protected under the most demanding conditions.
Investing in a high-quality harmonic damper is one of the most important steps in building a reliable high-performance Duramax. The ATI damper reduces the stress on the crankshaft, which helps prevent premature wear on bearings and other critical engine parts. Whether you are using your truck for heavy towing or performance street driving, the improved dampening will result in a smoother running engine and greater peace of mind. ATI is a trusted name in the industry, and this damper is built to their exacting standards for performance and longevity. Enhance your truck's durability and performance today with this premium component from GGCRACING.
| Brand | ATI |
|---|---|
| Manufacturer part number | ATI917376 |
| GGC SKU | APPATI917376 |
| UPC / GTIN | 800157031724 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 9.6 × 9.5 × 4.6 in |
|---|---|
| Shipping weight | 17.9 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
No reviews yet. Bought this part? Tell other drivers how it fits and performs.