Yamaha 66E-15100-10-00 - Crankcase Assembly | WaveRunner GP800, WaveRunner GP800R, WaveRunner XL800 & More

The genuine Yamaha 66E-15100-10-00 Crankcase Assembly is an OEM replacement component for compatible Yamaha WaveRunner and other listed Yamaha applications. This part is used within the engine system and supports correct internal engine movement, sealing, alignment, mounting, or component operation. Using the correct Yamaha OEM part helps maintain factory fit, compatibility, and dependable operation. Confirm your exact model and year in the compatibility table below before ordering.

---

Key Features & Benefits

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

---

Fits These Yamaha Models

Yamaha Model	Compatible Years
GP800 WaveRunner GP800	1998-2000
GP800A WaveRunner GP800R	2001-2005
XA800 WaveRunner XL800	2000-2001
XA800A WaveRunner XLT800	2002-2004

---

Frequently Asked Questions

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

66E-15100-10-00 is the genuine Yamaha Crankcase Assembly, an OEM replacement component used on the compatible Yamaha models listed above.

What is Yamaha 66E-15100-10-00 used for?

It is used within the engine system and supports correct internal engine movement, sealing, alignment, mounting, or component operation.

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

This part fits the Yamaha models and years shown in the compatibility table above, including WaveRunner GP800, WaveRunner GP800R, WaveRunner XL800, and WaveRunner XLT800. Fitment can vary by year and configuration, so verify your exact model and model year before ordering.

---

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.