Yamaha 7UH-11604-00-00 - Piston Ring Set (0.25MM O-S) is a genuine Yamaha part. This engine part is one of the internal components that keep the engine running as designed. Confirm part number 7UH-11604-00-00 against your Yamaha parts diagram before ordering.

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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 is the Yamaha Piston Ring Set (0.25MM O-S) (7UH-11604-00-00)?

The Piston Ring Set (0.25MM O-S) is a genuine Yamaha part sold under part number 7UH-11604-00-00. It replaces a worn or damaged engine component with the specified Yamaha part.

What does the 0.25MM O-S size on part 7UH-11604-00-00 mean?

O-S marks an oversize part and U-S an undersize part. Yamaha lists 7UH-11604-00-00 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.

Should related parts be replaced with the Piston Ring Set (0.25MM O-S), part 7UH-11604-00-00?

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 7UH-11604-00-00.

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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.