Exterior Components Body Panels and Components

SEALED POWER

CAST PISTON - INDIVIDUAL

$59.36

SKU: S03T WH851CP 1.00MM

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Sealed Power WH851CP is a hypereutectic aluminum piston designed for specific GM L4 engines. It features a dish-style piston top with no valve reliefs and a bore size of 89.000mm.

This individual replacement piston includes a press-fit wrist pin and has ring groove thicknesses of 1.50mm x 1.50mm x 3.00mm. It also includes a DurOshield® coated piston skirt for added durability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandSEALED POWER
Part NumberS03T WH851CP 1.00MM

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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