Harmonic Balancer Underdrive Pulley 300C Magnum Charger Challenger

Harmonic Balancer Underdrive Pulley 300C Magnum Charger Challenger

Item Code: LX3036

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Product Description

This new 25% underdrive balancer for the 5.7L/6.1L Dodge Charger/Magnum/300C (see application list below) incorporates a number of high quality features you won't find on any other aftermarket unit and makes up to 9 additional rear wheel horsepower and 10 ft-lbs of rear wheel torque over the stock crankshaft pulley. Pulley features are a pair of extra tall belt retention walls that eliminate the belt slippage issues common with other balancers, it is black powder-coated and SFI approved. Other unique design strengths include a 100% steel construction (other brands use aluminum), integral timing marks and built in puller mounting threads. Includes detailed installation instructions.


  • Up to 9 Rear Wheel Horsepower Increase
  • Up to 10 ft-lbs. Rear Wheel Torque Increase
  • Extra-tall belt-retention "walls"-no more thrown belts!
  • 100% steel construction
  • Black powder-coated
  • Lighter than the stock balancer
  • SFI approved
  • Integral timing marks and puller-mounting threads
  • Does not cause false knock retard or erratic power-curve dips
  • Note: Requires new belt - Dayco 6PK2025 or similar


  • 2005-2008 Chrysler 300C 5.7/6.1L Hemi
  • 2006-2008 Dodge Charger 5.7/6.1L Hemi
  • 2005-2008 Dodge Magnum 5.7/6.1L Hemi
  • 2008-2010 Dodge Challenger 6.1L Hemi
  • Installation Difficulty

    Installation Difficulty 5 View Installation Instructions


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