JE PISTONS | Pro-series piston for Yamaha YZ450F 2018-2019

Pro Series Engine Piston Kit by JE Pistons®. "Pro Series" Piston kits are available for demanding off-road applications and feature purpose-built forging designs that reduce overall piston weight without sacrificing strength or durability. Internal and external strut braces significantly reduce stress on critical areas and remove ring groove flatness for improved ring seal during operation. Get the performance of the top engine builders, with the durability required by weekend riders.

- Bore: 97mm
- Displacement: 449 cc
- Compression: 14.0:1 - 13.5:1
- Model: Pro series

Features:

• Machined from 2618 T6 high tensile forged aluminum
• Dome/Dish features smooth flowing radii and require no deburring or preparation
• JE designs are specifically engineered for extreme applications including professional competition
• Superior design for exceptional performance
• Designed for long-lasting service
• Unsurpassed in functionality and reliability

Includes:

• Pins
• Pin fitment
• Lock
• Rings

Fit only 2018 to 2019 m.y.