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Engines and Components› Pistons and Piston Rings

Wiseco

Wiseco 4 Stroke Forged Series Piston Kit, 3.875 IN Bore, 10.5:1 CR

$285.95 $258.59 Save $27.36

SKU: W00C 40186PS

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

Moderate — 2–4 hours

Description

The Wiseco 40186PS Piston Kit (MPN 40186PS) is designed for Harley-Davidson Twin Cam 103 Rushmore engines, specifically for 2015 models, with a 10.5:1 compression ratio and 3.875 inch bore. These 4-stroke forged series pistons are engineered, forged, and machined in the USA in Mentor, OH. They feature improved tensile strength for optimized performance and durability and come with wrist pins, rings, and circlips. The piston material is 2618, and it has a skirt coating.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandWiseco
Part NumberW00C 40186PS

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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