Wiseco WK1087 Pro-Lite Forged Piston Kit 72.00mm Bore Polaris SL750

The Wiseco WK1087 is a Pro-Lite forged piston kit engineered specifically for the Polaris SL750 personal watercraft. With a 72.00mm bore, this complete top-end kit delivers the strength, precision, and reliability that Wiseco is known for in demanding powersports applications.

Wiseco forges all of their own pistons in-house from high-silicon, low-expansion aluminum alloy, giving each piston superior strength-to-weight ratio, improved heat transfer, and extended service life compared to OEM cast pistons. Every piston is diamond-turned on CNC machining centers to ensure consistent sizing and a precise fit in cast iron, chrome, nikasil, and boron composite cylinder bores.

Kit Includes:

• Forged Pro-Lite piston – 72.00mm bore (Part: 633M)
• High-quality piston ring(s) – precision-engineered for optimal compression and oil control
• Wrist pin (Part: 2835CD) – chromium alloy steel for strength and durability
• Circlips – secure retention of the wrist pin assembly

Key Features:

• Forged from high-silicon aluminum alloy for improved tensile strength and service life
• CNC diamond-turned finish ensures zero size variation and precise cylinder wall fit
• Compatible with cast iron, chrome, nikasil, and boron composite cylinder bore compositions
• Dedicated forging optimizes strength-to-weight ratio for PWC performance demands
• Engineered and manufactured in the USA
• OEM Cross-Reference: 633M06975

Whether rebuilding a worn top end or upgrading for enhanced performance, the Wiseco WK1087 provides a proven, race-developed solution for the Polaris SL750 engine.