Engines and Components› Pistons and Piston Rings

JE Pistons

BMW S14B23 13.0 KIT

$314.99

SKU: J001 312386S

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Description

The JE Pistons 312386S is a forged piston designed for motorsport applications in the BMW S14B23 engine, found in the BMW M3 (E30 chassis). It features a 13:1 compression ratio, 94.00mm bore, 1.260 inch compression height, and 3.60 CC dome volume.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 312386S

Videos

NLAM3 Part 31 How To Build An S14 Complete Build Video

NLAM3 Part 31 How To Build An S14 Complete Build Video

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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