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

Wiseco Std Piston Kit for Yamaha Nytro MTX

This Wiseco standard piston kit (part 4894M07900) is a 79.00mm forged piston with a 9.5:1 compression ratio, made to rebuild the stock bore engine in the for Yamaha Nytro MTX.

Overview

This Wiseco Std piston kit is a forged replacement piston built for the for Yamaha Nytro MTX with the 1049cc engine at standard bore. It restores factory compression and piston-to-cylinder fit when the original piston has worn or failed. Riders and shops doing a stock rebuild on a Nytro MTX will find this Wiseco piston kit suited to their machine.

Built For Performance

• Forged construction for high strength under load
• 79.00mm standard bore size
• 9.5:1 compression ratio matches stock specifications
• Precision machined ring grooves for a reliable seal
• Part number 4894M07900 for exact fitment confirmation

Fits These Machines

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

On-The-Job Use

• Stock top-end rebuilds on Nytro engines
• Restoring compression after piston wear or damage
• Standard bore refresh without cylinder overboring
• Snowmobile engine rebuild before the riding season

Specs At A Glance

Good To Know

Q: Does this piston require cylinder machining? A: No, a standard bore piston is intended for a cylinder still within factory bore specs; confirm measurements before ordering.

Q: Is this piston sold individually or as a set? A: This listing covers a single Wiseco piston; confirm quantities and ring sets before ordering.

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