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Engines and Components› Pistons and Piston Rings

Wiseco

Wiseco 4 Stroke Forged Series Piston Kit, 3.477 IN Bore, 9:1 CR

$191.95 $178.53 Save $13.42

SKU: W00C 4012P4

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Wiseco 4012P4 is a forged piston kit designed for Harley-Davidson Panhead 1200 engines. It features a 3.477-inch bore diameter and a 3.474-inch piston diameter. This piston kit has an actual compression ratio of 9:1 and is constructed from 4032 aluminum alloy. The kit includes the piston, ring set #3477X, wrist pin #S521, and circlip #W5731.

Fitment

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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 4012P4

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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