Model#: OTCN4531

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Brand new items;Full manufacturer warranty available
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New or Recon items with possible minor cosmetic damage; CPO 120 day money back guarantee
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OTC Tools & Equipment 4531 Heavy-Duty Harmonic Balancer Puller/Installer Set

  • OTC Tools & Equipment 4531 Heavy-Duty Harmonic Balancer Puller/Installer Set
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OTC Specialty Tools & Equipment manufactures underhood and undercar special service tools for the modern technician, providing everything you need to service a vehicle or motorcycle.
  • For easy removal of most harmonic balancers and drive pulleys which are press-fitted onto the crankshaft
  • A bearing-centered circular 2/3-way puller flange and an assortment of metric and fractional bolts and adapters provide wide coverage
  • A heavy-duty, 3/4 in. dia. forcing screw is internally threaded to fit the eight adapters to install harmonic balancers
  • A blow-molded plastic storage case keeps set contents organized and protected from loss
  • Heavy-Duty Harmonic Balancer Puller/Installer Set - 4531


Adapters: M16 x 2.0, M14 x 1.5, M12 x 1.5, 3/4 in. 16, 5/8 in. 18, 9/16 in. 18, 1/2 in. 20 and 7/16 in. 20
Compatible With: Removal of most harmonic balancers and drive pulleys



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Easy To Use (1)
Yes, I would recommend this to a friend
Easy To Use
Great tool, this is the one to buy
Had to replace my balancer on a big block Chrysler engine. I had neve done the job previously. I watched you tube videos so I had an idea. My dad always said "Use the right tool for the job", well this is the one. It made pulling the old one off and re-installing the new one easy as pie. It comes with instructions in the nice organized plastic case. I highly recommend this tool
November 25, 2015

Questions & Answers

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Hello. I understand this puller/installer set is not vehicle specific, but does anyone know if it will work on a 1978 Chevy 1/2 ton K10 Pick Up - 350 cu. in./5.7 liter, small V8 engine? The manual states to use tool J-23523 for removal and installing a torsional damper, but I'm having trouble finding that specific tool. Thanks in advance for any help!
Margie on Jul 14, 2016
BEST ANSWER: Your question would be best answered by OTC directly. For better assistance, please call 800-533-6127