Wiseco Piston Kit Ski-Doo MX-Z 440 1995-1998 SK1205

A worn or damaged piston directly kills your sled's throttle response and fuel efficiency—and replacement with mismatched components only compounds the problem. The Wiseco SK1205 kit solves this by delivering a complete, factory-matched assembly engineered specifically for your MX-Z 440, eliminating guesswork and compatibility headaches. You get OEM-quality performance restoration with the durability to handle aggressive riding season after season.

What sets this kit apart is the engineering approach: Wiseco's high-silicone forged aluminum resists the thermal cycling that kills standard pistons, while the included rings, wrist pins, and circlips are all calibrated to work as a system. This means consistent compression, reliable sealing, and the kind of snap-off-the-line acceleration that reminds you why you ride.

• High-silicone forged aluminum
• Minimized thermal expansion
• 2-cycle optimized
• Complete kit assembly
• Piston, rings included
• Wrist pins, circlips included
• Gasket seal included
• Wiseco-spec rings only
• 1995–1998 MX-Z 440
• Bolt-on installation
• MPN: SK1205