Yamaha 90170-21S00-00 - 11/16-16 nut is a genuine Yamaha part. It is an OEM replacement component listed for 56 Yamaha models from 1996 through 2019, including the 210 FSH, Exciter, Exciter 220, and others. Using the correct Yamaha part number helps maintain factory fit and compatibility.

---

Key Features & Benefits

• Genuine Yamaha OEM part, factory part number 90170-21S00-00, manufactured for compatible Yamaha applications.
• Designed around Yamaha specifications, dimensions, and the surrounding factory assembly.
• Suitable for routine maintenance, restoration, or repair when this part number is specified for the model.

---

Fits These Yamaha Models

• ELT1050 210 FSH - 2018
• EXT1100 Exciter - 1996-1997
• EXT1100 Exciter 220 - 1998
• EXT1200 Exciter Twin - 1998
• View More - see the Specifications tab for full compatibility details

---

Frequently Asked Questions

What is Yamaha part 90170-21S00-00?

90170-21S00-00 is the Yamaha 11/16-16 nut, a genuine Yamaha part listed for 56 Yamaha models from 1996 through 2019.

Is 90170-21S00-00 a genuine Yamaha part?

Yes, this 11/16-16 nut is a genuine Yamaha part, sold under Yamaha part number 90170-21S00-00.

Which Yamaha models fit 90170-21S00-00?

90170-21S00-00 fits the ELT1050 210 FSH (2018), EXT1100 Exciter (1996-1997), EXT1100 Exciter 220 (1998), and EXT1200 Exciter Twin (1998), along with 52 additional models listed in the Specifications tab. Confirm exact SKU and model year compatibility before ordering.

---

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.