Professional Products Harmonic Balancer Counterweight

The Professional Products Harmonic Balancer Counterweight (also called a harmonic damper counterweight) is a bolt-in weight for Professional Products harmonic dampers. It lets you set up a damper for an externally balanced engine. Externally balanced engines have an offset weight on the damper and a matching weight on the flywheel or flexplate.

Key Features:

• Bolt-in design attaches to a compatible Professional Products damper
• Converts an internally (neutral) balanced damper to an externally balanced one
• Steel construction with a zinc oxide finish for corrosion resistance
• Attachment hardware is supplied by the manufacturer for installation
• Made by Professional Products, a name known for Powerforce and Powerforce+Plus harmonic dampers

Professional Products also notes that its externally balanced dampers use bolt-in counterweights. On most of those dampers the weight can be removed so the damper can be used on an internally balanced engine. Check the manufacturer's instructions for your damper, because a few models must not be run without the weight. Use the correct counterweight for your engine's balance type, and check clearance to the water pump and timing cover during installation.