Engines and Components› Pistons and Piston Rings

JE Pistons

Forged Aluminum Piston Set with Rings, Pins, and Locks

$899.99

SKU: JE-291062

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Description

The JE Pistons 100mm piston set is engineered for extreme automotive applications, including professional racing. Constructed from a 2618 T6 high tensile forged aluminum alloy, these pistons are built for durability and performance. The set includes essential components for installation, such as pin fitting, Tru Arc locks, and a .905 x 2.250 straight wall carbon steel wrist pin, along with a complete set of piston rings. Key specifications include a 100mm bore, an 8.5:1 compression ratio (with a .040 overbore), a -17.3cc dome volume, and a 57.0cc head volume. The stroke is 79mm, rod length is 130.5mm, and the wrist pin size is .905 x 2.250. These pistons are available in a .50 oversized option. This piston set is specifically designed to fit various Subaru EJ25 engines, including the 2004-2015 STI, 2005-2013 Forester XT, 2005-2013 Legacy GT, and 2006-2014 WRX models.

MIA's Description

These pistons are constructed from 2618 T6 high tensile forged aluminum alloy and feature smooth flowing radii for excellent flame travel. This set includes pin fitting, Tru Arc locks, and a .905 x 2.250 straight wall carbon steel wrist pin, along with piston rings.

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Specifications

BrandJE Pistons
Part NumberJE-291062
CategoryEngines and Components

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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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