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Chevrolet Performance

Chevrolet Performance Harmonic Balancer Bolts

4.9 out of 5 stars 58 Customer Reviews

Chevrolet Performance harmonic balancer bolts are made of high-quality steel and are heat-treated for extra strength. They feature a hex head to prevent socket slippage when loosening or tightening. The bolts are available in a variety of lengths, thread sizes, and finishes. Order the fasteners recommended for your year/make and engine application.

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Chevrolet Performance Harmonic Balancer Bolts 12557840

Chevrolet Performance Harmonic Balancer Bolts 12557840

Chevrolet Performance Harmonic Balancer Bolts 12557840

Harmonic Balancer Bolt, Gen. 3 and 4 LS engines only. Steel, Cadmium, Hex Head, Chevy, 4.8, 5.3, 5.7, 6.0, 6.2L Each

Part Number: NAL-12557840

4.96 out of 5 stars ( 53 )

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Same Item, New Number This renamed part is the same as the item you requested:

ACDelco GM Genuine Parts Harmonic Balancer Fastener Bolts 12557840

ACDelco GM Genuine Parts Harmonic Balancer Fastener Bolts 12557840

5 out of 5 stars ( 1 )

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Chevrolet Performance Harmonic Balancer Bolts for 2014-2015 CAMARO, 2006-2018 CORVETTE - 11570163

Chevrolet Performance Harmonic Balancer Bolts for 2014-2015 CAMARO, 2006-2018 CORVETTE - 11570163

Chevrolet Performance Harmonic Balancer Bolts for 2014-2015 CAMARO, 2006-2018 CORVETTE - 11570163

Harmonic Balancer Bolt, Hex Head, Steel, Black, Chevy, LS7, Each

Part Number: NAL-11570163

5.0 out of 5 stars ( 1 )

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Chevrolet Performance Harmonic Balancer Bolts 9440024

Chevrolet Performance Harmonic Balancer Bolts 9440024

Chevrolet Performance Harmonic Balancer Bolts 9440024

Bolt, Crankshaft, Hex Head, Chevy, Small Block, LT1/LT4, Each

Part Number: NAL-9440024

4.0 out of 5 stars ( 4 )

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