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Fluidampr's harmonic damper for Mopar B/RB big-block and 426 Hemi engines controls torsional vibration across the rpm range to reduce wear, lower crankshaft failure risk and improve timing while reclaiming lost torque. CNC-machined steel with black zinc chromate finish and engraved timing marks; maintenance-free and SFI 18.1 certified, made in USA. Note: 6-bolt pulley pattern; some older B-series may require pulley redrill or adapter.
Fluidampr Chrysler B/RB 383 426 440 CID 426 Hemi Steel Internally Balanced Damper
