- This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
- New stock is on the way! On order parts usually ship within 7 business days.
- Item is not in stock and usually ships 10-15 business days from the time you place your order.
- This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
Nut 521991102
- Manufactured by:
- Husqvarna
- ERP Number:
- ERP16350854
- Part Number:
- 521991102
Does this part fit my model?
Need help finding your model number?Troubleshooting
- Husqvarna
- Poulan
- RedMax
- Jonsered
- Craftsman
- Lawn Mower
- Lawn Tractor
- Snow Blower
- Leaf Blower / Vacuum
- Lawn Tractor Accessories
- Engine
Questions & Answers
?Our customer Service team is at the ready daily to answer your part and product questions.
We're sorry, but our Q&A experts are temporarily unavailable.
Please check back later if you still haven't found the answer you need.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Model Cross Reference
Manufacturer Part Number: 521991102
| Brand | Model Number | Description |
|---|---|---|
| Husqvarna | 125R | Brush Cutter - 125 R (20064000001-Current) |
| Husqvarna | 28982 | Lawn Tractor - Zero-Turn Riding Lawn Mower |
| Husqvarna | 327HDA65 | Hedge Trimmer - 327 Hda65 X-Series |
| Husqvarna | 365 | Chainsaw - 365 (20070900001-20101800000) |
| Husqvarna | 435E | Chainsaw - 435 E (20102300001-20111800000) |
| Husqvarna | 43EL | Lawn Mower - Royal 43el |
| Husqvarna | 54CC-ELECT | Lawn Tractor Accessories - Service Decks - 54cc-Elect (2020-04) |
| Craftsman | 917204170 | Engine - Zero-Turn Riding Mower |
| Craftsman | 917277710 | Lawn Mower - Riding Mower |
| Craftsman | 917277730 | Lawn Mower - Riding Mower |
| Craftsman | 917277780 | Lawn Mower - Riding Mower |
| Craftsman | 917277790 | Lawn Mower - Riding Mower |
| Husqvarna | 91750662 | Lawn Tractor - Zero-Turn Riding Lawn Mower |
| Craftsman | 944524410 | Snow Blower - Snow Thrower |
| Craftsman | 944525412 | Snow Blower - Snow Thrower |
| Husqvarna | 96043026100 | Lawn Tractor - Lawn Tractor |
| Husqvarna | 96043029500 | Lawn Tractor - Lawn Tractor |
| Husqvarna | 96043031100 | Lawn Tractor - Lawn Tractor |
| Husqvarna | 96043032100 | Lawn Tractor - Lawn Tractor |
| Husqvarna | 96191008700 | Snow Blower - Husqvarna Snowblower Model 96191008700/2014-06 (96191008700/201406, 96191008700/2014 06) Parts |
| Husqvarna | 96191008701 | Snow Blower - Husqvarna Snowblower Model 96191008701/2015-05 (96191008701/201505, 96191008701/2015 05) Parts |
| Husqvarna | 96191008801 | Snow Blower - Husqvarna Snowblower Model 96191008801/2015-05 (96191008801/201505, 96191008801/2015 05) Parts |
| Husqvarna | 96191009001 | Snow Blower - Husqvarna Snowblower Model 96191009001/2015-06 (96191009001/201506, 96191009001/2015 06) Parts |
| Poulan | 96192006701 | Snow Blower - Gas Snowblower |
| Poulan | 96192006702 | Snow Blower - Gas Snowblower |
| Poulan | 96192007104 | Snow Blower - Gas Snowblower |
| Poulan | 96192008700 | Snow Blower - Gas Snowblower |
| Poulan | 96192008900 | Snow Blower - Gas Snowblower |
| Poulan | 96192009000 | Snow Blower - Gas Snowblower |
| Poulan | 96192009003 | Snow Blower - Gas Snowblower |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.