Yamaha 7DX-E1635-00-00 - Piston (0.25MM O-S) is a genuine Yamaha part. It replaces a worn or damaged engine component with the specified Yamaha part. Ordering by part number 7DX-E1635-00-00 ensures you receive the exact component Yamaha lists for its location.

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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.

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Frequently Asked Questions

What part does Yamaha number 7DX-E1635-00-00 refer to?

Yamaha number 7DX-E1635-00-00 identifies the Piston (0.25MM O-S), 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 7DX-E1635-00-00 mean?

O-S marks an oversize part and U-S an undersize part. Yamaha lists 7DX-E1635-00-00 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.

Which Yamaha models use the Piston (0.25MM O-S), part 7DX-E1635-00-00?

Model and year fitment data is not listed for 7DX-E1635-00-00 on this page. Look up your model's Yamaha parts diagram and confirm that it lists part 7DX-E1635-00-00 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.