VERTEX VTKTC23394B High-Compression Top End Kit for Yamaha YZ250F

The VERTEX VTKTC23394B High-Compression Top End Kit is designed for select Yamaha YZ250F applications from 2008 through 2013. This kit features a forged piston made from 2618 aluminum for strength and durability, with a 13.9:1 compression ratio and a 76.96 mm standard piston specification.

The piston skirt is coated with molybdenum disulfide to support faster break-in and increased piston life. The piston is also heat-treated using a T-5 hardening and tempering cycle. High-compression design helps improve power and torque across the engine's operating range.

This top-end kit includes the piston, rings, pins, circlips, top-end gaskets, and wrist pin bearing or cam chain where applicable. The included rings are OEM replacements. The VERTEX VTKTC23394B fits 2008, 2009, 2010, 2011, 2012, and 2013 Yamaha YZ250F models.

Features:

• Brand and part number: VERTEX VTKTC23394B
• Application: Fits 2008–2013 Yamaha YZ250F models
• High-compression design: 13.9:1 compression ratio helps improve power and torque across the engine's operating range
• Forged construction: 2618 aluminum piston provides strength and durability
• Molybdenum disulfide coating: Supports faster break-in and increased piston life
• Heat treatment: T-5 hardening and tempering cycle
• Piston specification: 76.96 mm standard
• Included components: Piston, rings, pins, circlips, top-end gaskets, and wrist pin bearing or cam chain where applicable
• Replacement rings: OEM replacements

Fitment:
2008 Yamaha YZ250F
2009 Yamaha YZ250F
2010 Yamaha YZ250F
2011 Yamaha YZ250F
2012 Yamaha YZ250F
2013 Yamaha YZ250F