Wiseco SK1322 Piston Kit - Ski-Doo 493cc 2-Stroke Top End Kit 69.50mm STD Bore

The Wiseco SK1322 is a complete 2-stroke top end piston kit designed for the Ski-Doo 493cc engine (MXZ 500), featuring a standard bore diameter of 69.50mm. Built with Wiseco's aerospace-grade aluminum alloy, this Pro-Lite piston kit delivers a superior strength-to-weight ratio that race teams across all motorsport disciplines have relied on for decades.

Each piston is forged from high-performance aerospace alloy and CNC machined to an optimal cam shape and profile, ensuring peak horsepower output and extended service life. The precision-engineered ring set maintains consistent sealing for sustained power throughout the engine's lifespan, while the high-quality alloy wristpin provides durability and true, consistent dimensions for reliable performance.

Kit Specifications:

• Bore (Standard): 69.50mm
• Bore (Actual): 69.50mm
• Bore Size: STD (Standard)
• Stroke: 65.80mm
• Displacement: 499cc
• Engine Type: 493
• Cylinders: 2
• Engine Configuration: Pro-Lite, Cast Iron Bore, Liquid Cooled, Cylinder Reed

Kit Contents:

• 2436M06950 – Ski-Doo 493 Engine / MXZ 500 Piston(s)
• 2736CS – 69.50mm Ring Set
• CW18 – Round Wire Pin Locks, 18mm (Pair)
• S524 – Wristpin, 18mm x 2.244", Unchrome
• TWW6098 – Top End Gasket Kit, Ski-Doo MXZ 500

What's Included: Piston(s), ring set(s), wristpin(s), 2 circlips, and gaskets. Note: Top end bearing(s) are not included.

Wiseco top end kits are sold by application and bore size. Verify your engine's standard bore size before ordering to ensure you receive the correct standard or oversize kit for your application.