This harmonic balancer and Belt Drive Pulley is a new, aftermarket replacement part that has the following specifications:

  • Type - Double Serpentine Belt
  • OE part number - GM 12553118
  • Diameter - 7-1/2"(inches)
  • Width - 3-21/32" (inches)
  • Direct bolt on replacement
  • Built to strict quality control standards

A direct replacement. Please verify the dimensions against your existing balancer.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Vehicle Fit

  • 1998-2002 Chevy Camaro Harmonic Balancer V8 5.7L
  • 1998-2002 Pontiac Firebird Harmonic Balancer V8 5.7L
  • 2004-2006 Pontiac GTO Harmonic Balancer V8 5.7L

This part replaces:

  • Dorman 594-127
  • Hollander 309-555
  • OE # 12553118
Part #: 1AEHB00077
Brand #: 594-127