Yamaha 1SM-116A0-01-00 - 4-Stroke Piston Kit is an accessory kit including piston, ring, circlips, and wrist pin for select Yamaha motorcycles.

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Key Features & Benefits

• Genuine Yamaha kit — piston, ring, circlips, and wrist pin included
• High-quality forged aluminum piston construction
• Proven OEM fitment, durability, and reliability
• Restores factory compression and throttle response
• Straightforward drop-in replacement during a top-end rebuild
• Matched components eliminate bore/clearance guesswork

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Fits These Yamaha Models

Yamaha Model	Compatible Years
WR250F	2015-2017
YZ250F	2014-2015
YZ250FX	2015-2016

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Frequently Asked Questions

What is Yamaha part 1SM-116A0-01-00?

1SM-116A0-01-00 is the Yamaha 4-Stroke Piston Kit, an accessory kit that includes piston, ring, circlips, and wrist pin.

What type of Yamaha part is 1SM-116A0-01-00?

It is an accessory designed for service and maintenance on select Yamaha motorcycles.

Which Yamaha models fit 1SM-116A0-01-00?

This piston kit fits WR250F (2015-2017), YZ250F (2014-2015), and YZ250FX (2015-2016). Confirm exact model and year compatibility before ordering.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.