Wiseco WK1331 Yamaha Forged Piston Kit Bore - 1100 82.00mm

The Wiseco WK1331 is a complete forged piston kit designed for Yamaha 1100 engines, offering a direct-fit solution for rebuilds, overhauls, or performance upgrades. Manufactured to Wiseco's exacting standards, this kit (cross-reference: 3228KD-791M08200) delivers the strength and precision that both competitive racers and recreational riders demand.

Key Features:

• Forged High-Silicon Aluminum Construction: Each piston is forged from a high-silicon, low-expansion aluminum alloy, delivering superior strength, reduced weight, improved heat transfer, and extended service life compared to cast alternatives.
• Diamond-Turned CNC Finish: Precision machined on computer-controlled turning centers for a flawless surface finish with zero size variation, ensuring a consistent, reliable fit every time.
• 82.00mm Bore Diameter: Sized at 82.00mm for precise fitment, compatible with standard and resleeved cylinders.
• Universal Cylinder Compatibility: Engineered for use with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions.
• Oversize Availability: Wiseco's oversize piston range extends the life of cast iron lined cylinders; chrome, Nikasil, and boron composite cylinders can be re-sleeved to accept oversize pistons.
• Complete Kit: Includes all necessary components for a proper piston installation.

Wiseco has been a trusted name in forged piston technology for decades, supplying high-performance racers and recreational enthusiasts with precision-engineered components. The WK1331 piston kit is manufactured in Wiseco's state-of-the-art CNC facility and is built to meet or exceed OEM specifications for Yamaha 1100 applications.