Engines and Components› Pistons and Piston Rings

JE Pistons

4.155 400 SBC FT

$226.10

SKU: J001 181942L

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In Stock
Ships by Jun 7
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Non-Returnable Item
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Description

The JE Pistons 181942L is a single replacement piston designed for 400 small block 23-degree engines. It features a flat top with two valve reliefs and is forged from 2618 aluminum for high tensile strength.

This piston is engineered with a proprietary Forged Side Relief (FSR) design to minimize friction and weight. It may also include features like skirt coating to reduce friction and noise, and an accumulator groove for improved ring seal and consistent power. JE Pistons draws on over 75 years of experience to create premium forged pistons for domestic applications, offering a combination of durability and performance.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 181942L

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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