What material is this piston made from?

This piston is forged from high-strength 2618 aluminum alloy. This material is chosen for its ability to withstand higher compression and temperatures compared to standard cast aluminum.

Is this piston a direct replacement for my stock piston?

Yes, this piston is designed as a direct replacement for the original piston in your Yamaha YZ 250F or WR250F. This means it should install without requiring significant modifications.

Can this piston be shipped to California?

No, this piston is not CARB approved and cannot be shipped to California due to emissions regulations.

JE Pistons Yamaha YZ 250F/WR250F Piston 247940S

Name: JE Pistons Yamaha YZ 250F/WR250F Piston Single
Brand: JE Pistons
SKU: je-pistons-je-pistons-yamaha-yz-250f-wr250f-piston-single-t14-695252
Price: 324.99 USD
Availability: BackOrder

JE Pistons Yamaha YZ 250F/WR250F Piston Single

$324.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

JE Pistons forged piston for Yamaha YZ 250F/WR250F. Offers improved performance and durability for your engine.

Key Features

Fits Yamaha YZ 250F and WR250F models.
Constructed from high-strength 2618 aluminum alloy for durability.
Forged design handles higher compression and temperatures.
Designed as a direct replacement for straightforward installation.
Precision machined for a proper fit within the cylinder bore.
JE Pistons part number 247940S.

This piston is designed for Yamaha YZ 250F and WR250F models. It is not CARB approved and cannot be shipped to California.

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Product Details

Forged from high-strength 2618 aluminum alloy, this JE Pistons single piston is built for demanding performance in your Yamaha YZ 250F or WR250F. This material choice means it can handle the higher compression and temperatures that come with performance tuning or racing, offering a solid upgrade over stock cast pistons. JE Pistons is a well-known name in high-performance engine components, and this piston reflects their focus on durability and power.

This piston is designed as a direct replacement for your original, making installation straightforward for someone familiar with engine work. The precise machining ensures it fits right within the cylinder bore, contributing to good sealing and efficient combustion. When rebuilding or upgrading your engine, a well-built forged piston like this one is a critical component for reliability and performance.

Please note that this piston is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for specific details regarding your engine build.