Yamaha 66V-85540-00-00 CDI Unit Assembly is a genuine Yamaha electronic control component. It is designed for the factory engine or vehicle control system on compatible models. It is listed for 4 Yamaha model and model-year applications spanning model years 1999–2005.

Key Features

• Purpose: Replaces a control unit when service information identifies it as the required part.
• Design: Control modules can be highly application-specific.
• Fitment: Specified for 4 Yamaha model and model-year applications, listed in the compatibility section below.
• Part Number: Sold as genuine Yamaha part number 66V-85540-00-00.

Engine & Boat Compatibility

• GP1200 WaveRunner GP1200 (2000-2002)
• XA1200 WaveRunner XL12 LTD (1999-2000)
• XA1200A WaveRunner XLT1200 (2001-2005)
• XRT1200 XR1800 (2000-2001)

Performance & Real-World Benefits

When diagnosis identifies the control unit as the fault, installing the application-specific module restores the factory control system.

Why Choose Yamaha OEM

Control modules are highly application-specific, so matching the exact Yamaha part number, model, and model year avoids incompatible substitutions.

FAQ

Q1: Is 66V-85540-00-00 a genuine Yamaha OEM part?

Yes. This listing is for genuine Yamaha part number 66V-85540-00-00, intended for the applications listed in the compatibility section.

Q2: Which Yamaha models does this CDI unit assembly fit?

It fits the GP1200 WaveRunner GP1200 (2000-2002), XA1200 WaveRunner XL12 LTD (1999-2000), XA1200A WaveRunner XLT1200 (2001-2005), and XRT1200 XR1800 (2000-2001).

Q3: Does this control unit require programming or setup?

Programming, initialization, or calibration requirements can vary by model. Check the applicable Yamaha service information before installation and replacement.

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.