Yamaha 66E-15100-10-00 - Crankcase assembly is a genuine Yamaha part. It is an OEM replacement component listed for 4 Yamaha models from 1998 through 2005, including the WaveRunner GP800, WaveRunner GP800R, WaveRunner XL800, and others. Using the correct Yamaha part number helps maintain factory fit and compatibility.

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Key Features & Benefits

• Genuine Yamaha OEM part, factory part number 66E-15100-10-00, manufactured for compatible Yamaha applications.
• Designed around Yamaha specifications, dimensions, and the surrounding factory assembly.
• Supports correct internal engine movement, sealing, alignment, mounting, or component operation.
• Suitable for routine maintenance, restoration, or repair when this part number is specified for the model.

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Fits These Yamaha Models

• GP800 WaveRunner GP800 - 1998-2000
• GP800A WaveRunner GP800R - 2001-2005
• XA800 WaveRunner XL800 - 2000-2001
• XA800A WaveRunner XLT800 - 2002-2004

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Frequently Asked Questions

What is Yamaha part 66E-15100-10-00?

66E-15100-10-00 is the Yamaha Crankcase assembly, a genuine Yamaha part listed for 4 Yamaha models from 1998 through 2005.

Is 66E-15100-10-00 a genuine Yamaha part?

Yes, this crankcase assembly is a genuine Yamaha part, sold under Yamaha part number 66E-15100-10-00.

Which Yamaha models fit 66E-15100-10-00?

66E-15100-10-00 fits the GP800 WaveRunner GP800 (1998-2000), GP800A WaveRunner GP800R (2001-2005), XA800 WaveRunner XL800 (2000-2001), and XA800A WaveRunner XLT800 (2002-2004). Confirm exact SKU and model year compatibility 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.