【Compatibility】GM requires a new balancer bolt each time the engine is disassembled and the balancer is reinstalled. GM Harmonic Balancer Bolt fit for all Gen. 3 and 4 LS engines. LS1 LS2 LS3 LS6 L59 L92 L96 L99 LC9 LH8 LMF LMG LY5 LM7 LR4 LMG LQ4 LQ9 4.8L 5.3L 5.7L 6.0L 6.2L Engines (Except LS7/LS9)
【Premium Quality】LS harmonic balancer bolt is made of high-quality steel and are heat-treated for extra strength, which has the characteristics of wear resistance, breakage resistance, long service life and high stability
【OE Standard】Harmonic balancer crank bolt meets the Original Equipment (OE) standards, ensuring replacement fit just like the original. Head style is a hex head, which prevents socket slippage when loosening or tightening
【Please Note】For use in Gen. 3/4 LS engines only. Will not work on LS7/LS9 engines or other engines with a dry sump. Use of this bolt in a Gen. 5 LT can result in an oil leak
Description
GM 12557840 Harmonic Balancer Bolt
Application:
2003 To 2017 4.8L V8
1999 To Current 5.3L V8
1998 To 2004 5.7L LS-1 LS-6
1999 To 2013 6.0L
2007 Up 6.2L
Fit for GM LS1 LS2 LS3 LS6 L59 L92 LC9 LH8 LMF LMG LY5 L99 LM7 LR4 LMG LQ4 LQ9 L96 4.8L 5.3L 5.7L 6.0L 6.2L Engines
Fit for all gen III and gen IV LS engines except for LS7/LS9.
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