Engines and Components› Pistons and Piston Rings

JE Pistons

BMW S65B40 - 92.00/.827/3.6CC

$232.43

SKU: J001 371714L

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Description

It features an asymmetrical FSR (Forged Side Relief) forging design that allows for popular stroke and rod combinations while eliminating reluctor wheel clearance issues. This design maintains a larger skirt on the major thrust side for strength and a smaller skirt on the minor thrust side to reduce friction.

These pistons are machined for 1.2mm, 1.5mm, and 3.0mm rings and include combination 12° & 15° valve pockets. They also feature grain flow optimized forging, lateral gas ports, ceramic crown coating, perfect skirt coating, accumulator groove, and double pin oiling. Upgraded 9310 pins and locks are included.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 371714L

Videos

Piston Coatings 101: Which is the Right One for You?

Piston Coatings 101: Which is the Right One for You?
Why Forged Pistons Are BETTER Than Cast | JE Ultra Series Pistons [TECH TALK]

Why Forged Pistons Are BETTER Than Cast | JE Ultra Series Pistons [TECH TALK]
How to identify your JE Pistons

How to identify your JE Pistons
JE Pistons Asymmetrical Design Overview

JE Pistons Asymmetrical Design Overview
Which Forged Pistons Are Right For Your Build? | 🏁 Fast Facts

Which Forged Pistons Are Right For Your Build? | 🏁 Fast Facts
Cast vs. Forged Pistons: Which One is Best for Your Engine?

Cast vs. Forged Pistons: Which One is Best for Your Engine?
BMW S62 Engine Rebuild Masterclass: High‑Output NA Longblock, Alusil & JE Pistons

BMW S62 Engine Rebuild Masterclass: High‑Output NA Longblock, Alusil & JE Pistons
The LIGHTEST Pistons EVER: Introducing Hollow Crown

The LIGHTEST Pistons EVER: Introducing Hollow Crown
BUDGET FORGED N54 PISTONS & RODS UNBOXING X2

BUDGET FORGED N54 PISTONS & RODS UNBOXING X2
BMW N54 BUILT MOTOR PART 4 | INSTALLING CRANK, RODS, PISTONS

BMW N54 BUILT MOTOR PART 4 | INSTALLING CRANK, RODS, PISTONS

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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