40111M09700 Wiseco Std Piston Kit for Yamaha YZ450F 2014-2017 97.00mm 12.5:1

Wiseco Std Piston Kit 40111M09700 for Yamaha

This Wiseco Std Piston Kit, part 40111M09700, is a 97.00mm piston rated at 12.5:1 compression, built to restore top-end performance for Yamaha YZ450F models from 2014 to 2017.

Overview

This Wiseco Std Piston Kit 40111M09700 provides a 97.00mm bore at 12.5:1 compression for the Yamaha YZ450F. Riders rebuilding a 2014 through 2017 YZ450F get a forged piston engineered to handle high-rpm motocross use. The Wiseco Std Piston Kit restores standard bore and compression for reliable top-end performance.

Built For Performance

• Forged aluminum construction for high strength and heat resistance
• 97.00mm standard bore matches the factory cylinder size
• 12.5:1 compression ratio for strong combustion and response
• Precision machined ring grooves for a consistent seal
• Designed for the demands of four-stroke motocross engines

Fits These Machines

• for Yamaha YZ450F 2014
• for Yamaha YZ450F 2015
• for Yamaha YZ450F 2016
• for Yamaha YZ450F 2017

On-The-Job Use

• Top-end rebuilds on the Yamaha YZ450F
• Motocross and closed-course racing
• Restoring compression after piston or ring wear
• Routine maintenance at rebuild intervals

Specs At A Glance

Good To Know

Q: Does this piston kit fit a 2014 through 2017 Yamaha YZ450F? A: Yes, this kit is listed for the 2014 through 2017 Yamaha YZ450F at a 97.00mm standard bore with 12.5:1 compression. Confirm your engine is at standard bore before ordering.

Q: Is this piston forged or cast? A: This Wiseco piston is forged, which gives it strong resistance to heat and stress in a high-revving four-stroke. Proper clearances and ring end gaps should be set during assembly.

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