What does a harmonic balancer do?

Author's Note

I'll admit that I had no idea this part even existed until I began researching this article. It's just further proof of the complexity of the modern engine and its supporting components. I've read that a lot of people remove the harmonic balancer because they think it will increase their vehicle's performance, but I don't think this is recommended.

Related Articles


  • Auto MD. "How to replace a Harmonic Balancer." Automd.com. (April 25, 2012) http://www.automd.com/261/how-to-replace-a-harmonic-balancer/
  • Auto Parts Corner. "Harmonic Balancer." Autopartscorner.com. (April 25, 2012) http://www.autopartscorner.com/harmonic_balancer/
  • Mach V Motorsports. "Tip 11: Crank Pulleys." Machv.com. (April 25, 2012) http://www.machv.com/tip11cranpul.html