Yamaha 6BH-11631-00-B0 Piston (STD) is a genuine Yamaha engine component. It is designed for the factory engine assembly used in compatible models. It is listed for 31 Yamaha model and model-year applications spanning model years 2009–2021.

Key Features

• Purpose: Supports OEM-focused engine service when this part is specified.
• Design: Internal engine parts are highly application-specific.
• Fitment: Specified for 31 Yamaha model and model-year applications, listed in the compatibility section below.
• Part Number: Sold as genuine Yamaha part number 6BH-11631-00-B0.

Engine & Boat Compatibility

• FB1800 WaveRunner FX HO (2012-2021)
• FB1800A WaveRunner FX Cruiser HO (2012-2019, 2021)
• FY1800 WaveRunner FX HO (2009-2011)
• FY1800A WaveRunner FX Cruiser HO (2009-2011)
• GP1800R HO (2021)
• LAT1100 AR210 (2013)
• RX1800 AR190 (2012-2017)
• RX1800 SX190 (2012-2016, 2018)
• SAT1800 242 Limited (2015-2016)
• SAT1800 242 Limited E-Series (2016-2017)
• SAT1800 242 Limited S (2015-2019)
• SAT1800 242 Limited S E-Series (2016, 2018)
• SAT1800 242X E-Series (2016-2018)
• SAT1800 AR240 HO (2015-2017)
• SAT1800 SX240 HO (2015-2017)
• SH1800 190 FSH (2016-2018)
• SH1800 190 FSH Deluxe (2016-2018)
• SH1800 190 FSH Sport (2016-2018)
• SXT1800 242 Limited (2010-2014)
• SXT1800 242 Limited S (2010-2014)
• SXT1800 AR240 HO (2010-2014)
• SXT1800 SX240 HO (2010-2014)
• VX1800 WaveRunner VX Cruiser HO (2016-2017, 2019-2020)
• VX1800 WaveRunner VX Limited HO (2021)
• VX1800AK WaveRunner VXR (2011-2019)
• VX1800K WaveRunner VXS (2011-2016)
• XAT1800 212SS (2012-2016)
• XAT1800 212X (2012-2016)
• XBT1800 212 Limited (2017-2019)
• XBT1800 212 Limited S (2017-2019)
• XBT1800 212X (2017-2019)

Performance & Real-World Benefits

Internal engine repairs depend on parts that match the factory assembly. Installing the specified component keeps the rebuild or repair aligned with Yamaha service procedures.

Why Choose Yamaha OEM

Internal engine parts are highly application-specific, so exact part number, model, and service-procedure verification is important before installation.

FAQ

Q1: Is 6BH-11631-00-B0 a genuine Yamaha OEM part?

Yes. This listing is for genuine Yamaha part number 6BH-11631-00-B0, intended for the applications listed in the compatibility section.

Q2: How do I confirm this piston (STD) fits my Yamaha?

Match your exact model and model year to the Engine & Boat Compatibility list above, then verify part number 6BH-11631-00-B0 against the applicable Yamaha parts diagram.

Q3: 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.

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.