Yamaha 7NJ-11636-00-00 - Piston (0.50MM O-S) is a genuine Yamaha part. It replaces a worn or damaged engine component with the specified Yamaha part. Confirm part number 7NJ-11636-00-00 against your Yamaha parts diagram before ordering.

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Key Features & Benefits

• Built to Yamaha's specification for its engine location.
• Replaces worn, scored, or damaged engine components.
• Installs in the position shown in the Yamaha engine parts diagram.
• Size designation 0.50MM O-S as listed by Yamaha; confirm the required size with service manual measurements.
• Sold under Yamaha part number 7NJ-11636-00-00.

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Frequently Asked Questions

Is 7NJ-11636-00-00 a genuine Yamaha part?

Yes. 7NJ-11636-00-00 is the Yamaha part number for the Piston (0.50MM O-S). It is an internal engine component built to Yamaha's specification.

What does the 0.50MM O-S size on part 7NJ-11636-00-00 mean?

O-S marks an oversize part and U-S an undersize part. Yamaha lists 7NJ-11636-00-00 as 0.50MM 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.

Where does the Piston (0.50MM O-S), part 7NJ-11636-00-00, fit in the engine?

The Piston (0.50MM O-S) installs in the engine location shown for part 7NJ-11636-00-00 in the Yamaha parts diagram for your model.

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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.