Engines and Components› Harmonic Balancers

Pioneer Auto

SBC HP Harmonic Balancer Bolt Kit

$23.55

SKU: P01J 859012

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Pioneer Automotive 859012 is a harmonic balancer bolt kit designed for Chevy small block Gen I V8 engines. This kit features a hex head, steel construction with a yellow zinc dichromate finish, and includes a ground washer and high-tensile lockwasher. It is sold individually and has a 7/16-20 thread size with a length of 2.500 inches.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandPioneer Auto
Part NumberP01J 859012

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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