Engines and Components› Pistons and Piston Rings
JE Pistons
LS ASYM DM 4100STRKR
SKU: J001 312130L
Advanced — 4+ hours
Description
MIA's Description
The FSR (Forged Side Relief) forging design minimizes friction by using a larger skirt on the major thrust side and a smaller skirt on the minor thrust side. The pistons are machined for 1.2mm, 1.5mm, and 3.0mm rings and include accumulator grooves and double pin oilers.
Fitment
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Specifications
| Brand | JE Pistons |
| Part Number | J001 312130L |
Videos
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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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