Wiseco 582M05650 Dirt Bike Piston Kit 56.50mm 0.50mm Oversize 4-Stroke

The Wiseco 582M05650 is a precision-forged replacement piston designed for 4-stroke dirt bike applications. Manufactured to exacting tolerances, this piston is sized at 56.50mm, representing a 0.50mm oversize bore for engines that have been bored out to restore proper cylinder clearances.

Wiseco pistons are forged from high-strength aluminum alloy and engineered to deliver superior performance, durability, and heat resistance compared to standard OEM cast pistons. Every 4-stroke Wiseco piston kit ships as a complete assembly, so you have everything needed for installation right out of the box.

Kit Includes:

• Forged piston (56.50mm / 0.50mm oversize)
• Piston rings
• Wrist pin
• Circlips

Key Features:

• Forged aluminum construction for enhanced strength and reduced weight
• Precision-machined for tight tolerances and optimal ring seal
• 0.50mm oversize bore for use with appropriately bored cylinders
• Compatible only with genuine Wiseco replacement ring sets
• Drop-in fitment for straightforward engine rebuilds

For a proper rebuild, ensure the cylinder bore has been machined to accept the 56.50mm piston diameter. Only Wiseco replacement ring sets should be used with Wiseco pistons to maintain proper clearances and warranty coverage.