Yamaha Piston (Std) - 65U-11631-02-90

Overview

For Yamaha WaveRunner and boat maintenance, repair, or restoration, the Yamaha Piston (Std) with part number 65U-11631-02-90 provides the OEM part-number match for the compatible applications below. Current fitment data includes 12 model/application entries spanning model years 1997-2005. Fitment includes Exciter 135, Exciter Single, Exciter 270 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 Piston (Std) 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 65U-11631-02-90 against the applicable parts diagram when possible.

FAQs

Is 65U-11631-02-90 a genuine Yamaha OEM part?
Yes. This listing is for Yamaha part number 65U-11631-02-90, intended for the compatible Yamaha applications shown in the fitment table.

How do I confirm that this Piston (Std) 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 65U-11631-02-90. 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.