Yamaha 8MF-H591A-00-00 - Programmed ECM 9000 - 8 Tooth, 3.0P-RU is a genuine Yamaha part. It is an electronic control unit that manages system functions using input from sensors. Ordering by part number 8MF-H591A-00-00 ensures you receive the exact component Yamaha lists for its location.

---

Key Features & Benefits

• Processes sensor inputs and controls the system it manages.
• Replaces a failed or damaged control unit.
• Connects to the factory wiring harness for its location.
• The 9000 in the name separates this part from others that share the same name, so order by part number 8MF-H591A-00-00.

---

Frequently Asked Questions

What part does Yamaha number 8MF-H591A-00-00 refer to?

Yamaha number 8MF-H591A-00-00 identifies the Programmed ECM 9000 - 8 Tooth, 3.0P-RU, a genuine Yamaha part. This control unit processes signals and controls the system it is part of.

Why is there a 9000 in the name Programmed ECM 9000 - 8 Tooth, 3.0P-RU (8MF-H591A-00-00)?

Yamaha adds numbers to parts that share a name so each one can be told apart. The 9000 does not indicate quantity, so order by the full part number 8MF-H591A-00-00 rather than by name.

What does the Programmed ECM 9000 - 8 Tooth, 3.0P-RU (8MF-H591A-00-00) control?

The Programmed ECM 9000 - 8 Tooth, 3.0P-RU manages the system it is wired into, using inputs from related sensors, as shown for part 8MF-H591A-00-00 in the Yamaha parts diagram.

---

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.