Yamaha - Valve assy. - 66E-1131S-10-00 - GP800 GP800R GP1200 XL800 XLT800 XL12 LTD XLT1200 XR1800
Yamaha - Valve assy. - 66E-1131S-10-00 - GP800 GP800R GP1200 XL800 XLT800 XL12 LTD XLT1200 XR1800
Yamaha - Valve assy. - 66E-1131S-10-00 - GP800 GP800R GP1200 XL800 XLT800 XL12 LTD XLT1200 XR1800 is backordered and will ship as soon as it is back in stock.
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Description
Description
Yamaha Valve Assembly. - 66E-1131S-10-00
Overview
The Yamaha Valve Assembly., part number 66E-1131S-10-00, is an OEM replacement or service component for compatible Yamaha WaveRunner and boat models. The fitment table below covers 8 model/application entries spanning model years 1998-2005. Fitment includes GP800, GP800R, GP1200 and other compatible applications.
This genuine Yamaha engine component is designed for the factory engine assembly used in compatible models. Internal engine parts are highly application-specific, so exact SKU, model, and service-procedure verification is important before installation.
Key Features
- Genuine Yamaha OEM Engine Part: Designed for the specified factory engine assembly
- Application-Specific Fit: Matched to compatible Yamaha models and years
- Engine Repair & Rebuild: Suitable for OEM-focused engine service when this part is specified
- Exact Part Number Match: Helps identify the correct engine component for the application
Fitment
This Yamaha Valve Assembly. fits the Yamaha WaveRunner and boat models and model years listed below. Match your exact model and year before ordering, and verify Yamaha part number 66E-1131S-10-00 against the applicable parts diagram when possible.
| Model | Compatible Years |
|---|---|
| GP800 WaveRunner GP800 | 1998-2000 |
| GP800A WaveRunner GP800R | 2001-2005 |
| GP1200 WaveRunner GP1200 | 2000-2002 |
| XA800 WaveRunner XL800 | 2000-2001 |
| XA800A WaveRunner XLT800 | 2002-2004 |
| XA1200 WaveRunner XL12 LTD | 1999-2000 |
| XA1200A WaveRunner XLT1200 | 2001-2005 |
| XRT1200 XR1800 | 2000-2001 |
FAQs
Is 66E-1131S-10-00 a genuine Yamaha OEM part?
Yes. This listing is for Yamaha part number 66E-1131S-10-00, intended for the compatible Yamaha applications shown in the fitment table.
How do I confirm that this Valve Assembly. fits my Yamaha WaveRunner and boat?
Match both the exact Yamaha model and model year in the fitment table, then confirm the part number against the applicable Yamaha parts diagram or service information.
What is included with this listing?
The listing includes the component identified by Yamaha part number 66E-1131S-10-00. Related seals, fasteners, clips, brackets, or adjoining parts are separate unless the product listing specifically states otherwise.
What should be checked before installing an internal engine part?
Verify the exact part number, engine application, measurements or selection codes where applicable, and follow the Yamaha service manual for clearances, torque values, lubrication, and assembly procedures.
California Proposition 65 Warning
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.

