Out of stock
SKU: ATI918486
MPN: 918486
The ATI Performance Harmonic Damper 7.48 SFI for Dodge 5.7/6.4L Hemi engines is a precision-engineered crankshaft balancer designed to control harmonic vibration and stabilize engine operation at high RPM. Built to SFI 18.1 certification standards, this 7.480-inch outer diameter damper delivers the durability and precision demanded by serious Hemi performance builders and engine shops.
Constructed from steel with black oxide finish, this harmonic balancer is internally balanced to work with Mopar Hemi Generation III engines, eliminating the need for external balance weights and simplifying installation. The robust construction resists vibration-induced cracking and maintains balance integrity across extended high-RPM operation—critical for both street performance builds and sustained track duty. SFI 18.1 compliance ensures the damper meets sanctioning body requirements for competition use and demonstrates engineering integrity in vibration dampening.
This balancer addresses a core reliability concern in modified Hemi engines: uncontrolled harmonic vibration can crack factory dampers, accelerate bearing wear, and destabilize engine longevity under power. The ATI 918486 is the solution for builders seeking OEM-compatible fitment with enhanced durability. Suitable for mild street builds through serious performance applications—including supercharged and turbocharged Hemis—this damper supports engine modifications while maintaining stock appearance and bolt-on convenience.
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