What is included with this piston?

This listing is for a single forged piston. It does not include piston rings, wrist pins, or clips. These components are typically sold separately and should be sourced to match the piston specifications.

Why choose a forged piston over a cast piston?

Forged pistons are made by shaping aluminum at high pressure, which aligns the grain structure of the metal. This results in a stronger, more durable piston that can better withstand the high stresses and temperatures of an engine, especially in performance applications.

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 138979S Forged Piston - Honda CBR900R4

Name: JE Pistons 2.834 Honda CBR900R4 Piston Single
Brand: JE Pistons
SKU: je-pistons-je-pistons-2-834-honda-cbr900r4-piston-single-t14-695108
Price: 299.99 USD
Availability: BackOrder

JE Pistons 2.834 Honda CBR900R4 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 138979S forged piston for Honda CBR900R4. Single piston, 2.834in bore size.

Key Features

This product is a single forged piston from JE Pistons.
The part number is 138979S.
Designed for the Honda CBR900R4.
Features a bore size of 2.834 inches.
Constructed using a forging process for improved strength and durability.

This piston is designed for the Honda CBR900R4. Please verify compatibility with your specific motorcycle model and year before purchase.

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Product Details

This listing is for a single, forged piston from JE Pistons, part number 138979S. It's designed for the Honda CBR900R4 and has a bore size of 2.834 inches. This piston is a key component for rebuilding or upgrading your motorcycle's engine, helping to ensure reliable performance and power delivery.

JE Pistons are well-known for their robust construction and attention to detail. This forged piston is built to withstand the high pressures and temperatures found in performance engines. Forged pistons offer improved strength and durability compared to cast pistons, making them a solid choice for demanding applications or when rebuilding an engine to factory specifications or beyond. The 2.834-inch bore size is specific to the Honda CBR900R4, ensuring a proper fit within the cylinder.

Please note that this piston is not CARB approved and cannot be shipped to California. Always refer to your service manual for specific installation procedures and torque specifications when working on your engine.