What is the main advantage of a forged piston over a cast piston?

Forged pistons are made by heating and hammering aluminum, which creates a denser grain structure. This makes them stronger and more resistant to heat and detonation compared to cast pistons, which are made by pouring molten aluminum into a mold.

Do I need to buy a set of pistons, or can I just replace one?

This product is sold as a single piston. If your engine requires multiple pistons, you will need to purchase the correct quantity individually. Always refer to your service manual for specific engine requirements.

What other parts might I need when installing a new piston?

When installing a new piston, it's common to also need new piston rings, a new wrist pin, and potentially new gaskets for the cylinder head and base. It's recommended to consult your motorcycle's service manual for a complete list of parts and procedures.

JE Pistons Forged Piston Single 292754S

Name: JE Pistons Kawasaki NINJA 250R Piston Single
Brand: JE Pistons
SKU: je-pistons-je-pistons-kawasaki-ninja-250r-piston-single-t14-695460
Price: 299.99 USD
Availability: BackOrder

JE Pistons Kawasaki NINJA 250R Piston Single

$299.99

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 single piston for Kawasaki Ninja 250R. Direct fit.

Key Features

Fits Kawasaki Ninja 250R.
Forged aluminum construction offers improved strength and durability.
Designed as a single replacement piston.
Part number 292754S.

This piston is designed for the Kawasaki Ninja 250R. Please verify compatibility with your specific motorcycle model and year.

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Product Details

This is a single forged piston from JE Pistons, designed specifically for the Kawasaki Ninja 250R motorcycle. If you're rebuilding the top end of your Ninja 250R's engine, a well-built piston like this is crucial for restoring or improving performance. JE Pistons is a well-known name in high-performance engine components, and this piston reflects their focus on durability and precision.

Forged pistons are made from a solid block of aluminum that's heated and hammered into shape, which makes them stronger and more resistant to detonation and heat than cast pistons. This particular piston is a single unit, meaning you'll need to purchase them individually if you're replacing more than one in your engine. The part number 292754S ensures you're getting the correct specification for your Ninja 250R, aiming for a direct fit into the cylinder bore.

When rebuilding an engine, it's important to ensure all components are compatible and installed correctly. This piston is intended as a replacement part for the stock unit, and it's always a good idea to consult your service manual for the proper installation procedures and any other related parts you might need, such as rings or gaskets.