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Engines and Components› Pistons and Piston Rings

Wiseco

Wiseco Yamaha RD350 73-75/ RD400 76-92 2520CD Piston Kit

$199.95 $185.34 Save $14.61

SKU: W00C 393M06400

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Ships in 4–6 weeks
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Non-Returnable Item
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Description

The Wiseco 393M06400 is a forged aluminum piston kit designed for the Yamaha RD350 and RD400 motorcycles. This standard bore piston features a 64.00mm bore diameter and a 63.92mm piston diameter, contributing to a displacement of 346cc.

Crafted from high-silicon, low-expansion aluminum, these pistons offer enhanced strength, reduced weight, improved heat transfer, and extended lifespan for reliable performance.

Fitment

Fitment Guaranteed

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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

BrandWiseco
Part NumberW00C 393M06400

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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