SKU: GMP12557840
MPN: 12557840
The Chevrolet Performance Crank/Balancer Bolt (Part Number 12557840) is a precision engine fastener designed specifically for GM LS-series powerplants, including LS1, LS2, LS3, LS6, and L92 variants. This bolt is essential for securing the harmonic balancer to the crankshaft, ensuring proper engine timing and performance.
Constructed from durable steel with a zinc oxide finish, this bolt provides excellent corrosion resistance in typical engine bay environments. The hex head design allows for easy installation with standard socket tools, and the bolt is engineered to meet OEM specifications for reliable performance under high-RPM conditions.
Engine builders, performance shops, and technicians working on LS-platform engines will find this fastener indispensable for avoiding costly timing issues or balancer slippage. Whether for street performance, track use, or restoration, this bolt is a critical component for maintaining engine integrity.
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