4894M07900 Piston Kit for Yamaha FX Nytro 2008-2012 Std 79.00mm 9.5:1 CR

Wiseco Std Piston Kit for Yamaha FX Nytro

This Wiseco standard piston kit, cross-referenced as 4894M07900, is a 79.00mm forged piston assembly with a 9.5:1 compression ratio for Yamaha FX Nytro snowmobile engines from 2008 through 2012.

Overview

This Wiseco Std Piston Kit 4894M07900 gives Yamaha FX Nytro owners a forged replacement piston built to factory bore size. The 79.00mm piston with 9.5:1 compression ratio restores proper cylinder sealing and combustion performance for riders and rebuilders servicing the 2008-2012 FX Nytro platform. This Wiseco Std Piston Kit 4894M07900 is intended for top-end rebuilds where a standard bore forged piston is required.

Built For Performance

• Forged piston construction for higher strength than cast alternatives
• 79.00mm standard bore size for stock-cylinder fitment
• 9.5:1 compression ratio for responsive engine output
• Cross-reference part number 4894M07900 for easy verification
• Manufactured by Wiseco, a recognized name in powersports pistons

Fits These Machines

• for Yamaha FX Nytro 2008
• for Yamaha FX Nytro 2009
• for Yamaha FX Nytro 2010
• for Yamaha FX Nytro 2011
• for Yamaha FX Nytro 2012

On-The-Job Use

• Top-end engine rebuilds on FX Nytro snowmobiles
• Cylinder and piston replacement during routine maintenance
• Restoring compression after piston wear or damage
• Shop and DIY rebuild projects on Yamaha snowmobile engines

Specs At A Glance

Good To Know

Q: Is this piston a direct replacement for my FX Nytro? A: It is a standard bore piston designed for Yamaha FX Nytro engines from 2008-2012 with a 79.00mm cylinder. Confirm your bore size and serial number before ordering.

Q: Does this kit include rings and pin? A: This listing is for the Wiseco Std Piston Kit referenced as 4894M07900. Verify the exact kit contents with the seller before purchase if components beyond the piston are required.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.