Sale

Engines and Components› Pistons and Piston Rings

Wiseco

Wiseco 4 Stroke Forged Series Piston Kit, 4.250 IN Bore

$290.95 $262.86 Save $28.09

SKU: W00C 40100PS

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

Moderate — 2–4 hours

Description

The Wiseco 40100PS is a HD TC 4.250 bore 131 cu in Front Piston Kit. It is a 4-stroke forged series piston kit with a 4.250 inch bore. These pistons are designed and built specifically for V-Twin engine platforms, with optimized compression ratios for performance and durability. They are engineered, forged, and machined in the USA. The kit includes wrist pin, rings (Ring Set #4250VMF), and circlips (CirClip #W5752). The piston material is 2618 and features a skirt coating. The piston diameter is 4.247.

Fitment

Fitment Guaranteed

Don’t gamble
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 40100PS

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.

View Full Return Policy