Yamaha 99999-01892-00 - Piston Kit (0.25MM O-S) (J38) is a genuine Yamaha part. It replaces a worn or damaged engine component with the specified Yamaha part. Match part number 99999-01892-00 to the Yamaha parts diagram for your model to confirm it is the component you need.

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Key Features & Benefits

• Installs in the position shown in the Yamaha engine parts diagram.
• Built to Yamaha's specification for its engine location.
• Replaces worn, scored, or damaged engine components.
• Size designation 0.25MM O-S as listed by Yamaha; confirm the required size with service manual measurements.
• Sold under Yamaha part number 99999-01892-00.

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Frequently Asked Questions

What part does Yamaha number 99999-01892-00 refer to?

Yamaha number 99999-01892-00 identifies the Piston Kit (0.25MM O-S) (J38), a genuine Yamaha part. It is an internal engine component built to Yamaha's specification.

What does the 0.25MM O-S size on part 99999-01892-00 mean?

O-S marks an oversize part and U-S an undersize part. Yamaha lists 99999-01892-00 as 0.25MM O-S, which is used when the mating part has been machined or worn to match. Measure and confirm the required size using the Yamaha service manual.

Should related parts be replaced with the Piston Kit (0.25MM O-S) (J38), part 99999-01892-00?

When replacing engine internals, inspect mating parts and replace gaskets and seals disturbed during disassembly. Refer to the Yamaha service manual for your model when installing 99999-01892-00.

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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.