Beginner — under 30 min
Description
Each piston features a dish style with two valve reliefs and a 4.000-inch bore. They are designed for a 3.750-inch stroke and a 5.700-inch rod length, with a compression height of 1.425 inches and a piston head volume of +12.00cc. The wrist pin is included and is a press-fit or floating style with included retainers.
Fitment
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Available on iOS & Android
Specifications
| Brand | SEALED POWER |
| Part Number | S03T H859CP 20 |
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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