Nachman 09-731 OEM-Style Teflon-Coated Piston Kit with Rings Standard Bore - 72mm

The Nachman 09-731 is an OEM-style piston kit designed as a direct replacement for 1999–2003 Polaris 800 triple snowmobile engines. Built to standard bore specifications at 72mm, this kit restores engine performance and compression to factory levels without the cost of OEM parts.

Featuring Teflon-coated piston rings, this kit reduces friction and wear for smoother operation and extended engine life. All components are manufactured to OEM specifications, ensuring precise fitment and reliable performance.

Kit Includes:

• 1 OEM-style cast piston (72mm standard bore)
• 1 Teflon-coated ring set
• 1 wrist pin
• 1 circlip set

Key Features:

• Standard bore (STD) sizing for stock cylinder applications
• Teflon-coated rings for reduced friction and improved wear resistance
• Engineered for optimal combustion chamber heat transfer to cylinder walls
• All individual components interchange with original OEM parts
• Cast piston construction closely matches original equipment specifications

Important Note: Chrome-plated rings are not compatible with chrome-plated or electrofusion cylinder liners. Verify your cylinder liner type before installation.