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97-13 LS1/LS2/LS3/LS6 Harmonic Balancer Bolt

Item #:
M-3919
$8.99
In Stock - Ships today if ordered by 3:00 PM ET
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Related To This Item
The harmonic balancer bolt on the LS series Corvette engines was designed by GM for a one time use (TTY). Once it has been torqued it can not be re-used. It is recommended to always replace this bolt when the replacing or servicing the harmonic balancer. Fits 1997-2013 Corvettes including LS1, LS2, LS6 and LS3 Corvettes w/o dry sump oil system.

(GM Part 12557840)

This item is proudly Made in the USA

Installation difficulty: 4

Our technicians have determined that the installation difficulty level of this item is a 4 on a scale of 1-5. Read more about our install ratings here.

Model Years

More Information
Generation C5, C6
Model Year 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Additional Item Information
  • OE GM PART #: 12557840 *GM part # provided for lookup purposes only.
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