# Wiseco 03-09 Yamaha YZ450F/03-15 WR 12.5:1 CR Piston Kit

The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco's forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for.

-   Improved tensile strength of forged material optimizes strength and service life
-   Designed and built for each specific 4-stroke powersports engine
-   Dedicated forgings allow for optimized strength-to-weight ratio
-   Includes high-quality piston rings, wrist pin(s), and circlips
-   Engineered, forged, and machined in the USA in Mentor, OH
-   97.00 mm Bore, 12.5:1 CR

This Part Fits:

Year

Make

Model

Submodel

2013-2015

Gas Gas

EC 450F

Base

2003-2015

Yamaha

WR450F

Base

2003-2009

Yamaha

YZ450F

Base

## Details

- **Price:** 377.59 CAD
- **Vendor:** Wiseco
- **Type:** Piston Sets - Powersports

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 377.59 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - out of package
- User 1
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> Source: [Standard Auto Part](https://www.standardautopart.com/products/wiseco-03-09-yamaha-yz450f-03-15-wr-12-5-1-cr-piston-kit)
> Updated: 2026-07-03