Engines and Components› Pistons and Piston Rings

JE Pistons

SUBARU EJ25 DOHC 4V INVDME -23CC 10

$262.96

SKU: J001 6599M100

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

Advanced — 4+ hours

Description

The JE Pistons 6599M100 is a shelf stock piston designed for Subaru EJ25 DOHC engines. This piston features a 100mm bore, a 30.25mm compression height, and a -23cc dome volume, resulting in a compression ratio of 8.5:1. It is constructed from forged aluminum alloy for durability and performance.

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

BrandJE Pistons
Part NumberJ001 6599M100

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.

View Full Return Policy