Yamaha YF1-26570-21-12 - Crankcase 1 is a genuine Yamaha part. It replaces a worn or damaged engine component with the specified Yamaha part. Confirm part number YF1-26570-21-12 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.
• The 1 in the name separates this part from others that share the same name, so order by part number YF1-26570-21-12.

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Frequently Asked Questions

What is the Yamaha Crankcase 1 (YF1-26570-21-12)?

The Crankcase 1 is a genuine Yamaha part sold under part number YF1-26570-21-12. It is an internal engine component built to Yamaha's specification.

Why is there a 1 in the name Crankcase 1 (YF1-26570-21-12)?

Yamaha adds numbers to parts that share a name so each one can be told apart. The 1 does not indicate quantity, so order by the full part number YF1-26570-21-12 rather than by name.

How can I check that the Crankcase 1 (YF1-26570-21-12) is the right part for my vehicle?

Find the Crankcase 1 in the Yamaha parts diagram for your exact model and year and confirm the part number shown matches YF1-26570-21-12. A Yamaha dealer can also verify it with your model or VIN.

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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.