GLM Marine
/glm-marine/products/prop-nut-21231Prop Nut (21231) 21231
Country of Origin:
TaiwanSatisfaction rating5
Aftermarket product
PartX Rating: Better
/glm-marine/products/prop-nut-21231
$13.79$17.24
You save 20%($3.45)
-20%
In stock
Only 2 remaining
- 30 day return policy
Yamaha Motors 90171-16011-00
Castle Nut
The Yamaha OEM nut offers the highest assurance of correct thread pitch/tolerances and controlled metallurgy for a prop-retaining fastener where loosening or thread damage can lead to prop loss. The aftermarket options appear compatible, but none provides evidence of identical OEM sourcing or superior material specifications.
$16.06
View recommended partPartX Alternatives — This part: Better
Ratings provided by PartX™
| Product | Price | Rating | Comment |
|---|---|---|---|
| Yamaha Motors 90171-16011-00 Castle Nut Genuine OEM product | $16.06 In stock 5+ in stock | Best | Japan-made genuine Yamaha castle nut with clean thread form and evenly cut castellations (slots) for the cotter pin. OEM sourcing provides the highest confidence in correct fit, alloy control, and corrosion resistance on the prop shaft. |
| GLM Marine 21231 Prop Nut (21231) (viewing this product) Aftermarket product | $13.79 In stock Only 2 remaining | Better | Taiwan-made brass slotted prop nut built to replace Yamaha 90171-16011, with a comparable hex profile, thread cut, and six castellations. Finish and machining look consistent, but it is not OEM-sourced and comes from a different factory than Yamaha. |
Product Questions 0
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Supersession Chain
| Name | SKU | Superseding SKU |
|---|---|---|
| Prop Nut (21231)Viewing this product | 21231 | Current |
OEM Interchange
| Name | SKU | Price | Brand |
|---|---|---|---|
| Castle Nut | 90171-16011-00 | $16.06 | Yamaha Motors |